Common Weakness Enumeration
CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
6395 vulnerabilities reference this CWE, most recent first.
CVE-2026-89425 (GCVE-0-2026-89425)
Vulnerability from cvelistv5 – Published: 2026-09-23 02:06 – Updated: 2026-09-23 14:00
VLAI
EPSS
VEX
Title
jackson-core: UTF8DataInputJsonParser._reportInvalidToken() does not honor maxErrorTokenLength, allowing unbounded StringBuilder growth
Summary
UTF8DataInputJsonParser._reportInvalidToken() in FasterXML jackson-core builds the offending-token text for its error message by appending Java identifier characters to a StringBuilder in a loop that has no upper bound. Unlike the three sibling parser implementations, including UTF8StreamJsonParser, it never consults ErrorReportConfiguration.getMaxErrorTokenLength() (default 256). A malformed token supplied to a parser created through JsonFactory.createParser(DataInput) is therefore accumulated in full. No StreamReadConstraints setting mitigates this: maxDocumentLength cannot be applied to DataInput sources at all, and maxStringLength does not cover this path because the accumulation bypasses ReadConstrainedTextBuffer. The reporter measured a 20,000,109-character exception message from a 20-million-character malformed token on the DataInput path, against 367 characters for identical input on the InputStream path. Scaling the payload drives the StringBuilder, which also incurs byte-to-char expansion and internal array doubling, to many times the raw payload size and can trigger OutOfMemoryError for the whole JVM. UTF8DataInputJsonParser was introduced in 2.8.0 together with createParser(DataInput); releases before 2.8.0 do not contain the affected class.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 13:54 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FasterXML/jackson-core/securit… | vendor-advisory |
| https://github.com/FasterXML/jackson-core/pull/1698 | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| FasterXML | jackson-core |
Affected:
2.8.0 , ≤ 2.18.10
(maven)
Affected: 2.19.0 , ≤ 2.21.6 (maven) Affected: 2.22.0 , ≤ 2.22.2 (maven) |
|
| FasterXML | jackson-core |
Affected:
3.0.0 , ≤ 3.1.6
(maven)
Affected: 3.2.0 , ≤ 3.2.2 (maven) |
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CVE-2026-89407 (GCVE-0-2026-89407)
Vulnerability from cvelistv5 – Published: 2026-09-22 14:53 – Updated: 2026-09-22 15:52
VLAI
EPSS
VEX
Title
jackson-core: quadratic backtracking in NumberInput.PATTERN_FLOAT via looksLikeValidNumber() enables ReDoS
Summary
NumberInput.looksLikeValidNumber() in FasterXML jackson-core pre-validates "stringified numbers" with two regular expressions: PATTERN_FLOAT ([+-]?[0-9]*[\.]?[0-9]+([eE][+-]?[0-9]+)?), present since 2.17.0, and PATTERN_FLOAT_TRAILING_DOT, added in 2.17.2. PATTERN_FLOAT places adjacent quantifiers over the same character class -- an optional [0-9]* run, an optional dot, then a required [0-9]+ run -- so input that ultimately fails to match forces Java's backtracking engine to retry every possible split point of the digit run.
Matching cost therefore grows with the square of the input length.
An attacker who can supply JSON that an application deserializes into a numeric target type reaches this method through jackson-databind's default String-to-number coercion (StdDeserializer and NumberDeserializers for BigDecimal, BigInteger, Double and Float).
Because StreamReadConstraints.maxStringLength defaults to 20,000,000 characters, no constraint bounds the input before it reaches the regex.
Testing by the reporter confirmed O(n^2) growth across five consecutive input-size doublings, with a single 160,000-character string consuming roughly 74 seconds in one call; a small number of concurrent requests of ordinary body size can therefore exhaust a server's request-handling thread pool.
The affected method does not exist before 2.17.0, so 2.16.x and earlier releases are not affected.
The fix replaces both regular expressions with a hand-rolled single-pass scan.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 15:52 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/FasterXML/jackson-core/securit… | vendor-advisory |
| https://github.com/FasterXML/jackson-core/issues/1649 | issue-tracking |
| https://github.com/FasterXML/jackson-core/pull/1650 | patch |
| https://github.com/FasterXML/jackson-core/pull/1701 | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| FasterXML | jackson-core |
Affected:
2.17.0 , ≤ 2.18.10
(maven)
Affected: 2.19.0 , ≤ 2.21.6 (maven) Affected: 2.22.0 , ≤ 2.22.2 (maven) |
|
| FasterXML | jackson-core |
Affected:
3.0.0 , ≤ 3.1.6
(maven)
Affected: 3.2.0 , ≤ 3.2.1 (maven) |
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CVE-2026-89147 (GCVE-0-2026-89147)
Vulnerability from cvelistv5 – Published: 2026-09-11 10:46 – Updated: 2026-09-24 14:21
VLAI
EPSS
VEX
Title
Net-SNMP through 5.9.5.2 Denial of Service via Blocking Unauthenticated SMUX Read
Summary
Net-SNMP through 5.9.5.2 contains a denial of service vulnerability in the SMUX module where smux_accept() performs an unauthenticated blocking read without timeout on newly accepted connections. An unauthenticated remote client can connect to the SMUX listener and send no data, causing the single-threaded snmpd main loop to block indefinitely and suspend all SNMP processing.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 16:06 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://gist.github.com/thesmartshadow/001cea595e… | third-party-advisory |
| https://github.com/net-snmp/net-snmp/blob/v5.9.5.… | technical-description |
| https://github.com/net-snmp/net-snmp | product |
| https://www.vulncheck.com/advisories/net-snmp-thr… | third-party-advisory |
Impacted products
Date Public
2026-09-09 00:00
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CVE-2026-88975 (GCVE-0-2026-88975)
Vulnerability from cvelistv5 – Published: 2026-09-15 19:31 – Updated: 2026-09-16 14:43
VLAI
EPSS
VEX
Title
Http4s: Ember HTTP/2 buffers a frame's declared payload before checking SETTINGS_MAX_FRAME_SIZE
Summary
Http4s is a Scala interface for HTTP services. Prior to 0.23.37 and 1.0.0-M48, Ember’s HTTP/2 read loop parses a frame’s 24-bit declared length but waits to buffer the entire payload before comparing it with SETTINGS_MAX_FRAME_SIZE. An unauthenticated peer can declare a payload near 16 MiB on a connection where Ember advertised 16 KiB and either complete or slowly stream it, causing up to 1024-fold memory amplification per connection before processFrame can reject the frame. The shared H2Connection.readLoop affects withHttp2 servers and clients, while HTTP/2-disabled configurations are unaffected, and the patch rejects oversized frames before buffering their payloads. This issue is fixed in versions 0.23.37 and 1.0.0-M48.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 14:43 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/http4s/http4s/security/advisor… | x_refsource_CONFIRM |
| https://github.com/http4s/http4s/commit/87cf334fa… | x_refsource_MISC |
| https://github.com/http4s/http4s/releases/tag/v0.23.37 | x_refsource_MISC |
| https://github.com/http4s/http4s/releases/tag/v1.… | x_refsource_MISC |
Impacted products
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CVE-2026-88932 (GCVE-0-2026-88932)
Vulnerability from cvelistv5 – Published: 2026-09-14 08:46 – Updated: 2026-09-14 10:29
VLAI
EPSS
VEX
Title
multer vulnerable to Denial of Service via orphaned disk writes on aborted uploads
Summary
multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are not removed, so each aborted upload can leave an orphaned file on disk. A remote unauthenticated attacker can repeatedly start and abort uploads to accumulate orphaned files and exhaust disk space, causing a denial of service. The issue is fixed in multer 2.4.0, and users should upgrade to 2.4.0 or later.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 10:28 UTC
Assigner
References
Impacted products
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CVE-2026-88290 (GCVE-0-2026-88290)
Vulnerability from cvelistv5 – Published: 2026-09-10 08:26 – Updated: 2026-09-10 15:04
VLAI
EPSS
VEX
Title
GV-LPC2011/LPC2211 - Unauthenticated VLSVR Slowloris and Memory Resource Exhaustion
Summary
GeoVision GV-LPC2211 V1.14 (260903) allows unauthenticated clients to declare unbounded VLSVR frame lengths and indefinitely delay blocking receives, allowing remote exhaustion of memory, connection, and worker resources.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 15:04 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GeoVision Inc. | GV-LPC2011/LPC2211 |
Affected:
1.14 20260903
Unaffected: 1.14 20260909 cpe:2.3:a:geovision_inc.:gv-lpc2011_lpc2211:1.14_20260903:*:*:*:*:*:*:* |
Date Public
2026-09-10 06:00
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CVE-2026-88286 (GCVE-0-2026-88286)
Vulnerability from cvelistv5 – Published: 2026-09-10 08:24 – Updated: 2026-09-10 15:07
VLAI
EPSS
VEX
Title
GV-LPC2011/LPC2211 - PTZ Connection-State Accept-Loop Denial of Service
Summary
GeoVision GV-LPC2211 V1.13 improperly manages PTZ connection state, allowing an unauthenticated remote client to block the accept loop and prevent new PTZ connections.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 15:07 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GeoVision Inc. | GV-LPC2011/LPC2211 |
Affected:
1.13
Unaffected: 1.14 cpe:2.3:a:geovision_inc.:gv-lpc2011_lpc2211:1.13:*:*:*:*:*:*:* |
Date Public
2026-09-10 05:48
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CVE-2026-87908 (GCVE-0-2026-87908)
Vulnerability from cvelistv5 – Published: 2026-09-11 06:37 – Updated: 2026-09-11 15:54
VLAI
EPSS
VEX
Title
multiparty vulnerable to Denial of Service via unbounded part-header accumulation
Summary
multiparty is a Node.js library for parsing multipart/form-data request bodies. In versions from 2.1.0 up to but not including 4.3.1, the parser does not bound the amount of memory used while accumulating the headers of a single multipart part. An unauthenticated attacker can send a single request whose part carries a very large volume of header bytes, forcing the parser to buffer all of them and exhausting the process memory, which crashes the server. This is a denial of service with no confidentiality or integrity impact. The issue is fixed in multiparty 4.3.1, which caps the size of the accumulated part headers. Users should upgrade to multiparty 4.3.1 or later.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 15:53 UTC
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| multiparty | multiparty |
Affected:
2.1.0 , < 4.3.1
(semver)
Unaffected: 4.3.1 (semver) |
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CVE-2026-87722 (GCVE-0-2026-87722)
Vulnerability from cvelistv5 – Published: 2026-09-24 22:03 – Updated: 2026-09-25 16:44
VLAI
EPSS
VEX
Title
Regular Expression Denial of Service (ReDoS) in Search Query Predicates and REST Filter Endpoints in Gerrit Code Review
Summary
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Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 16:40 UTC
CWE
Assigner
References
1 reference
Impacted products
Date Public
2026-09-22 00:00
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CVE-2026-87721 (GCVE-0-2026-87721)
Vulnerability from cvelistv5 – Published: 2026-09-24 22:02 – Updated: 2026-09-25 16:49
VLAI
EPSS
VEX
Title
Denial of Service via Exponential Backtracking in ANTLR Search Query Parser in Gerrit Code Review
Summary
Uncontrolled Resource Consumption (CWE-400 / CWE-407) in the ANTLR 3 search query parser (QueryParser / Query.g) in Gerrit Code Review versions 2.0.19 through 3.12.9, 3.13.0 through 3.13.8, and 3.14.0 through 3.14.2 allows an unauthenticated remote attacker (or an authenticated user if anonymous read access is disabled) to cause a persistent denial of service (CPU exhaustion and HTTP worker thread pool starvation requiring a server restart) via crafted search queries containing deeply nested parentheses sent to query evaluation endpoints (/changes/?q=, /accounts/?q=, /groups/?query=, /projects/?query=, /Documentation/?q=, /changes/{id}/query?expression=, or SSH gerrit query). Because syntactic predicates in conditionOr and conditionAnd recurse via conditionBase without memoization prior to capability or visibility checks and worker threads do not abort when the client disconnects, a small number of requests (such as 25 requests matching default httpd.maxThreads) can permanently pin all HTTP worker threads. This issue is fixed in Gerrit Code Review versions 3.12.10, 3.13.9, and 3.14.3.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 16:45 UTC
CWE
Assigner
References
1 reference
Impacted products
Date Public
2026-09-22 00:00
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"value": "Uncontrolled Resource Consumption (CWE-400 / CWE-407) in the ANTLR 3 search query parser (QueryParser / Query.g) in Gerrit Code Review versions 2.0.19 through 3.12.9, 3.13.0 through 3.13.8, and 3.14.0 through 3.14.2 allows an unauthenticated remote attacker (or an authenticated user if anonymous read access is disabled) to cause a persistent denial of service (CPU exhaustion and HTTP worker thread pool starvation requiring a server restart) via crafted search queries containing deeply nested parentheses sent to query evaluation endpoints (/changes/?q=, /accounts/?q=, /groups/?query=, /projects/?query=, /Documentation/?q=, /changes/{id}/query?expression=, or SSH gerrit query). Because syntactic predicates in conditionOr and conditionAnd recurse via conditionBase without memoization prior to capability or visibility checks and worker threads do not abort when the client disconnects, a small number of requests (such as 25 requests matching default httpd.maxThreads) can permanently pin all HTTP worker threads. This issue is fixed in Gerrit Code Review versions 3.12.10, 3.13.9, and 3.14.3."
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"value": "Uncontrolled Resource Consumption (CWE-400 / CWE-407) in the ANTLR 3 search query parser (QueryParser / Query.g) in Gerrit Code Review versions 2.0.19 through 3.12.9, 3.13.0 through 3.13.8, and 3.14.0 through 3.14.2 allows an unauthenticated remote attacker (or an authenticated user if anonymous read access is disabled) to cause a persistent denial of service (CPU exhaustion and HTTP worker thread pool starvation requiring a server restart) via crafted search queries containing deeply nested parentheses sent to query evaluation endpoints (/changes/?q=, /accounts/?q=, /groups/?query=, /projects/?query=, /Documentation/?q=, /changes/{id}/query?expression=, or SSH gerrit query). Because syntactic predicates in conditionOr and conditionAnd recurse via conditionBase without memoization prior to capability or visibility checks and worker threads do not abort when the client disconnects, a small number of requests (such as 25 requests matching default httpd.maxThreads) can permanently pin all HTTP worker threads. This issue is fixed in Gerrit Code Review versions 3.12.10, 3.13.9, and 3.14.3."
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"impacts": [
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"capecId": "CAPEC-230",
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{
"capecId": "CAPEC-488",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-488 HTTP Flood to Exhaust Server Resources"
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]
},
{
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"descriptions": [
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"value": "CAPEC-147 Excessive Allocation of Resources Due to Flawed Design"
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]
}
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"orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
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"title": "Denial of Service via Exponential Backtracking in ANTLR Search Query Parser in Gerrit Code Review",
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"dateReserved": "2026-09-09T01:03:19.716Z",
"dateUpdated": "2026-09-25T16:49:24.185Z",
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Mitigation
Architecture and Design
Design throttling mechanisms into the system architecture. The best protection is to limit the amount of resources that an unauthorized user can cause to be expended. A strong authentication and access control model will help prevent such attacks from occurring in the first place. The login application should be protected against DoS attacks as much as possible. Limiting the database access, perhaps by caching result sets, can help minimize the resources expended. To further limit the potential for a DoS attack, consider tracking the rate of requests received from users and blocking requests that exceed a defined rate threshold.
Mitigation
Architecture and Design
- Mitigation of resource exhaustion attacks requires that the target system either:
- The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.
- The second solution is simply difficult to effectively institute -- and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.
- recognizes the attack and denies that user further access for a given amount of time, or
- uniformly throttles all requests in order to make it more difficult to consume resources more quickly than they can again be freed.
Mitigation
Architecture and Design
Ensure that protocols have specific limits of scale placed on them.
Mitigation
Implementation
Ensure that all failures in resource allocation place the system into a safe posture.
CAPEC-147: XML Ping of the Death
An attacker initiates a resource depletion attack where a large number of small XML messages are delivered at a sufficiently rapid rate to cause a denial of service or crash of the target. Transactions such as repetitive SOAP transactions can deplete resources faster than a simple flooding attack because of the additional resources used by the SOAP protocol and the resources necessary to process SOAP messages. The transactions used are immaterial as long as they cause resource utilization on the target. In other words, this is a normal flooding attack augmented by using messages that will require extra processing on the target.
CAPEC-227: Sustained Client Engagement
An adversary attempts to deny legitimate users access to a resource by continually engaging a specific resource in an attempt to keep the resource tied up as long as possible. The adversary's primary goal is not to crash or flood the target, which would alert defenders; rather it is to repeatedly perform actions or abuse algorithmic flaws such that a given resource is tied up and not available to a legitimate user. By carefully crafting a requests that keep the resource engaged through what is seemingly benign requests, legitimate users are limited or completely denied access to the resource.
CAPEC-492: Regular Expression Exponential Blowup
An adversary may execute an attack on a program that uses a poor Regular Expression(Regex) implementation by choosing input that results in an extreme situation for the Regex. A typical extreme situation operates at exponential time compared to the input size. This is due to most implementations using a Nondeterministic Finite Automaton(NFA) state machine to be built by the Regex algorithm since NFA allows backtracking and thus more complex regular expressions.