Common Weakness Enumeration
CWE-348
AllowedUse of Less Trusted Source
Abstraction: Base · Status: Draft
The product has two different sources of the same data or information, but it uses the source that has less support for verification, is less trusted, or is less resistant to attack.
161 vulnerabilities reference this CWE, most recent first.
CVE-2026-58122 (GCVE-0-2026-58122)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:30 – Updated: 2026-07-14 21:34 X_Open Source
VLAI
EPSS
VEX
Title
Hermes WebUI < 0.51.307 Authentication Bypass via X-Forwarded-For Header Spoofing
Summary
Hermes WebUI before 0.51.307 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to circumvent local-origin IP restrictions on onboarding endpoints by supplying a spoofed X-Forwarded-For header with a loopback address. Attackers can exploit this bypass to perform server-side request forgery against internal services including cloud metadata endpoints, overwrite LLM provider configuration and API keys with attacker-controlled values, or initiate OAuth device-code flows to obtain persistent access tokens stored in auth.json.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-10 19:12 UTC
CWE
- CWE-348 - Use of Less Trusted Source
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/nesquena/hermes-webui/releases… | release-notes |
| https://github.com/nesquena/hermes-webui/pull/3758 | issue-tracking |
| https://github.com/nesquena/hermes-webui/commit/7… | patch |
| https://www.vulncheck.com/advisories/hermes-webui… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nesquena | hermes-webui |
Affected:
0 , < 0.51.307
(semver)
cpe:2.3:a:get-hermes:hermes_web_ui:*:*:*:*:*:*:*:* |
Date Public
2026-06-06 00:00
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CVE-2026-57942 (GCVE-0-2026-57942)
Vulnerability from cvelistv5 – Published: 2026-06-29 17:17 – Updated: 2026-06-30 11:15 X_Open Source
VLAI
EPSS
VEX
Title
LibreTranslate - IP Spoofing via X-Forwarded-For Header
Summary
LibreTranslate through 1.9.7, fixed in commit 397fd22, contains an IP spoofing vulnerability in the get_remote_address() function that allows unauthenticated attackers to spoof client IP addresses by injecting arbitrary values into the X-Forwarded-For header without trusted proxy validation. Attackers can bypass per-IP rate limiting and flood bans by supplying forged addresses in the X-Forwarded-For header to enable unlimited API abuse.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 18:37 UTC
CWE
- CWE-348 - Use of Less Trusted Source
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/LibreTranslate/LibreTranslate/… | issue-tracking |
| https://github.com/LibreTranslate/LibreTranslate/… | issue-tracking |
| https://github.com/LibreTranslate/LibreTranslate/… | patch |
| https://www.vulncheck.com/advisories/libretransla… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| LibreTranslate | LibreTranslate |
Affected:
0 , ≤ 1.9.7
(semver)
Unaffected: 397fd224080515d4001a1bc60c8fed53e3c56b6f (git) |
Date Public
2026-06-13 00:00
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CVE-2026-55641 (GCVE-0-2026-55641)
Vulnerability from cvelistv5 – Published: 2026-07-10 15:36 – Updated: 2026-07-10 19:06
VLAI
EPSS
VEX
Title
9router: Unauthenticated `/v1` proxy access via `Host`-header spoofing → open AI relay + SSRF
Summary
9Router is an AI router & token saver. Prior to 0.5.2, 9router determines whether a /v1 LLM proxy request is local by reading the client-controlled Host header, allowing a remote unauthenticated attacker to send Host: localhost and bypass API-key authentication. In the default configuration, this exposes the /v1 proxy to upstream provider calls using stored provider credentials and allows /v1/search with the searxng provider_options.baseUrl parameter to drive server-side requests to internal or cloud-metadata hosts. This issue is fixed in version 0.5.2.
Severity
8.2 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-10 19:06 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/decolua/9router/security/advis… | x_refsource_CONFIRM |
| https://github.com/decolua/9router/commit/b282f05… | x_refsource_MISC |
| https://github.com/decolua/9router/releases/tag/v0.5.2 | x_refsource_MISC |
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CVE-2026-54289 (GCVE-0-2026-54289)
Vulnerability from cvelistv5 – Published: 2026-06-22 17:16 – Updated: 2026-06-22 18:19
VLAI
EPSS
VEX
Title
Hono: Lambda@Edge adapter keeps only the last value of a repeated request header, dropping the rest
Summary
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on AWS Lambda@Edge, CloudFront delivers a request header that appears more than once as several separate entries. The adapter writes each value with Headers.set instead of Headers.append, so every value overwrites the previous one and only the last reaches the application. Repeated request headers such as X-Forwarded-For, Forwarded, and Via are silently truncated to a single value. Request middleware sees only the last value of a repeated header instead of the full chain. For applications that base access control on the X-Forwarded-For chain, this can weaken or alter that decision; for auditing, hop history is lost. This vulnerability is fixed in 4.12.25.
Severity
4.8 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 18:19 UTC
CWE
- CWE-348 - Use of Less Trusted Source
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/honojs/hono/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-50243 (GCVE-0-2026-50243)
Vulnerability from cvelistv5 – Published: 2026-07-22 13:08 – Updated: 2026-07-22 18:58
VLAI
EPSS
VEX
Title
'response-ip'/'rpz' can rewrite BOGUS answers instead of returning SERVFAIL
Summary
In NLnet Labs Unbound 1.6.2 up to and including 1.25.1, when Unbound is configured with the 'respip' module in front of the validator together with a 'response-ip' redirect rule or an RPZ file with an RPZ-IP trigger, the rewriting handler does not check the security status of the upstream answer and can instead rewrite a BOGUS A/AAAA answer to point to an operator's configured IP. If the validator finds an expired or otherwise invalid RRSIG on an answer whose A record falls within a 'response-ip'/RPZ configuration, the answer is still rewritten and given a hard coded security level of INSECURE. This results in the client receiving an INSECURE NOERROR reply rewritten by the operator's configured IP. A malicious actor can exploit the possible poisonous effect by spoofing a BOGUS A/AAAA answer that falls inside the operator's configured subnet rewrites. Such DNSSEC protected answers are then insecurely redirected to the operator's configured target.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 18:57 UTC
CWE
- CWE-348 - Use of Less Trusted Source
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.nlnetlabs.nl/downloads/unbound/CVE-20… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NLnet Labs | Unbound |
Affected:
1.6.2 , < 1.25.2
(semver)
|
Date Public
2026-07-22 00:00
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CVE-2026-48772 (GCVE-0-2026-48772)
Vulnerability from cvelistv5 – Published: 2026-06-19 19:28 – Updated: 2026-06-22 15:16
VLAI
EPSS
VEX
Title
ProxySQL: PROXY-Protocol-v1 UNKNOWN parses spoofed source IP, bypassing mysql_query_rules.client_addr ACL
Summary
ProxySQL is a proxy for MySQL and its forks, as well as PostgreSQL. In versions 2.0.0 through 3.0.8, the ProxySQL MySQL frontend accepts the `PROXY UNKNOWN <addr> <addr> <port> <port>\r\n` PP1 frame as a well-formed PROXY protocol header. The HAProxy PROXY protocol v1 specification says that when the protocol token is `UNKNOWN`, the receiver MUST ignore any address fields that follow it, because the proxy has declared it cannot determine the client identity. ProxySQL parses those address fields anyway via `sscanf` and writes the spoofed source address into the session's `addr.addr` field. From there it flows directly into the query-rule matcher, where the `client_addr` predicate decides routing and ACL. When `mysql-proxy_protocol_networks = '*'` (the default), any TCP peer can send a PP1 frame and choose any source IP claim. With that, any `mysql_query_rules` row pinned to a `client_addr` value is forgeable: the attacker writes the address they want to match into the PP1 line, and ProxySQL routes their query as if it came from that address. In practice this is a routing and ACL bypass. Real deployments use `client_addr` for read-write splitting (internal apps go to the primary, public traffic to read replicas), per-app schema pinning, and query-filter rules (DDL allowed only from admin CIDR, public queries blocked from dangerous patterns). An attacker that can reach the frontend port can forge their way into any of those routes. Version 3.0.9 patches this issue.
Severity
10 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 15:15 UTC
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sysown/proxysql/security/advis… | x_refsource_CONFIRM |
| https://github.com/sysown/proxysql/releases/tag/v3.0.9 | x_refsource_MISC |
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CVE-2026-46466 (GCVE-0-2026-46466)
Vulnerability from cvelistv5 – Published: 2026-07-03 13:10 – Updated: 2026-07-06 14:18
VLAI
EPSS
VEX
Summary
Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 contain an use of less trusted source vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to information tampering.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 14:18 UTC
CWE
- CWE-348 - Use of Less Trusted Source
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-us/00048126… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | PowerProtect Data Domain |
Affected:
0 , < 8.8.0.0 or later
(semver)
Affected: 0 , < 8.6.1.20 or later (semver) Affected: 0 , < 8.3.1.40 or later (semver) Affected: 0 , < 7.13.1.80 or later (semver) |
Date Public
2026-07-02 06:30
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CVE-2026-46415 (GCVE-0-2026-46415)
Vulnerability from cvelistv5 – Published: 2026-07-20 15:05 – Updated: 2026-07-21 13:53
VLAI
EPSS
VEX
Title
Caddy Defender trusted proxy client IP bypass
Summary
The Caddy Defender plugin is a middleware for Caddy that allows users to block or manipulate requests based on the client's IP address. Prior to version 0.10.1, Caddy Defender used `r.RemoteAddr` when evaluating whether a request should be blocked. `RemoteAddr` is the address of the immediate peer connected to Caddy. In deployments where Caddy is behind a trusted proxy, CDN, or load balancer, the immediate peer is usually the proxy, not the original client. Caddy resolves the original client address into its `client_ip` request variable after applying the configured `trusted_proxies` policy, but Defender did not use that value. As a result, clients from blocked IP ranges could bypass Defender when accessing Caddy through a trusted proxy whose own IP address was not blocked. This affects deployments that use Defender behind trusted proxies and expect it to enforce blocking based on the real client IP. The issue is fixed in version 0.10.1 by making Defender prefer Caddys resolved `client_ip` request variable when it is available. Defender falls back to `RemoteAddr` only when Caddy has not provided a resolved client IP. There is no complete workaround in affected Defender versions for deployments that rely on Caddy's trusted proxy client IP resolution. Until upgrading, affected users should enforce equivalent IP blocking at the trusted proxy, CDN, load balancer, firewall, or other edge layer before traffic reaches Caddy. Deployments where Caddy receives traffic directly from clients, without an intermediate trusted proxy, are not affected by this bypass.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 13:52 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/JasonLovesDoggo/caddy-defender… | x_refsource_CONFIRM |
| https://github.com/JasonLovesDoggo/caddy-defender… | x_refsource_MISC |
| https://caddyserver.com/docs/caddyfile/matchers#c… | x_refsource_MISC |
| https://caddyserver.com/docs/caddyfile/options#tr… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| JasonLovesDoggo | caddy-defender |
Affected:
< 0.10.1
|
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CVE-2026-44183 (GCVE-0-2026-44183)
Vulnerability from cvelistv5 – Published: 2026-05-12 17:32 – Updated: 2026-05-13 14:40
VLAI
EPSS
VEX
Title
Cleanuparr: X-Forwarded-For leftmost parsing allows remote unauthenticated admin takeover when reverse-proxy mode is enabled
Summary
Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent. Prior to 2.9.10, TrustedNetworkAuthenticationHandler.ResolveClientIp parses the leftmost entry of the X-Forwarded-For header as the client IP. That entry is attacker-controlled — X-Forwarded-For is append-only, so the leftmost value is whatever the original HTTP client claimed. By sending a spoofed local IP in the header, an unauthenticated remote attacker passes the trusted-network check and is logged in as the Cleanuparr administrator. This vulnerability is fixed in 2.9.10.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 14:39 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Cleanuparr/Cleanuparr/security… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cleanuparr | Cleanuparr |
Affected:
< 2.9.10
|
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CVE-2026-44046 (GCVE-0-2026-44046)
Vulnerability from cvelistv5 – Published: 2026-06-19 13:09 – Updated: 2026-06-22 16:18
VLAI
EPSS
VEX
Title
Apache APISIX: wolf-rbac plugin Identity Spoofing
Summary
Use of Less Trusted Source vulnerability in Apache APISIX.
Attacker can take advantage of wolf-rbac plugin under default configuration to potentially pollute logs with spoofed identity information and exploit IP based access control rules.
This issue affects Apache APISIX: from 1.2.0 through 3.16.0.
Users are recommended to upgrade to version 3.17.0, which fixes the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 16:17 UTC
CWE
- CWE-348 - Use of Less Trusted Source
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache APISIX |
Affected:
1.2.0 , ≤ 3.16.0
(semver)
|
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No mitigation information available for this CWE.
CAPEC-141: Cache Poisoning
An attacker exploits the functionality of cache technologies to cause specific data to be cached that aids the attackers' objectives. This describes any attack whereby an attacker places incorrect or harmful material in cache. The targeted cache can be an application's cache (e.g. a web browser cache) or a public cache (e.g. a DNS or ARP cache). Until the cache is refreshed, most applications or clients will treat the corrupted cache value as valid. This can lead to a wide range of exploits including redirecting web browsers towards sites that install malware and repeatedly incorrect calculations based on the incorrect value.
CAPEC-142: DNS Cache Poisoning
A domain name server translates a domain name (such as www.example.com) into an IP address that Internet hosts use to contact Internet resources. An adversary modifies a public DNS cache to cause certain names to resolve to incorrect addresses that the adversary specifies. The result is that client applications that rely upon the targeted cache for domain name resolution will be directed not to the actual address of the specified domain name but to some other address. Adversaries can use this to herd clients to sites that install malware on the victim's computer or to masquerade as part of a Pharming attack.
CAPEC-73: User-Controlled Filename
An attack of this type involves an adversary inserting malicious characters (such as a XSS redirection) into a filename, directly or indirectly that is then used by the target software to generate HTML text or other potentially executable content. Many websites rely on user-generated content and dynamically build resources like files, filenames, and URL links directly from user supplied data. In this attack pattern, the attacker uploads code that can execute in the client browser and/or redirect the client browser to a site that the attacker owns. All XSS attack payload variants can be used to pass and exploit these vulnerabilities.
CAPEC-76: Manipulating Web Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
CAPEC-85: AJAX Footprinting
This attack utilizes the frequent client-server roundtrips in Ajax conversation to scan a system. While Ajax does not open up new vulnerabilities per se, it does optimize them from an attacker point of view. A common first step for an attacker is to footprint the target environment to understand what attacks will work. Since footprinting relies on enumeration, the conversational pattern of rapid, multiple requests and responses that are typical in Ajax applications enable an attacker to look for many vulnerabilities, well-known ports, network locations and so on. The knowledge gained through Ajax fingerprinting can be used to support other attacks, such as XSS.