Common Weakness Enumeration
CWE-367
AllowedTime-of-check Time-of-use (TOCTOU) Race Condition
Abstraction: Base · Status: Incomplete
The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.
1314 vulnerabilities reference this CWE, most recent first.
CVE-2026-25641 (GCVE-0-2026-25641)
Vulnerability from cvelistv5 – Published: 2026-02-06 19:50 – Updated: 2026-02-06 20:20
VLAI
EPSS
VEX
Title
SandboxJS has a sandbox escape via TOCTOU bug on keys in property accesses
Summary
SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, there is a sandbox escape vulnerability due to a mismatch between the key on which the validation is performed and the key used for accessing properties. Even though the key used in property accesses is annotated as string, this is never enforced. So, attackers can pass malicious objects that coerce to different string values when used, e.g., one for the time the key is sanitized using hasOwnProperty(key) and a different one for when the key is used for the actual property access. This vulnerability is fixed in 0.8.29.
Severity
10 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-06 20:19 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/nyariv/SandboxJS/security/advi… | x_refsource_CONFIRM |
| https://github.com/nyariv/SandboxJS/commit/67cb18… | x_refsource_MISC |
| https://github.com/nyariv/SandboxJS/blob/6103d714… | x_refsource_MISC |
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CVE-2026-25278 (GCVE-0-2026-25278)
Vulnerability from cvelistv5 – Published: 2026-09-17 04:11 – Updated: 2026-09-17 14:37
VLAI
EPSS
VEX
Title
Time-of-check Time-of-use (TOCTOU) Race Condition in Automotive Software platform based on QNX
Summary
Memory Corruption when processing I2C transfer requests due to a race condition between memory allocation and data copying.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 14:37 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Qualcomm, Inc. | Snapdragon |
Affected:
LeMans_AU_LGIT
Affected: LeMansAU Affected: QAM8255P Affected: QAM8295P Affected: QAM8620P Affected: QAMSRV1H Affected: QAMSRV1M Affected: QCA6574AU Affected: QCA6595 Affected: QCA6595AU Affected: QCA6688AQ Affected: QCA6696 Affected: QCA6698AQ Affected: QCA6797AQ Affected: QCA8695AU Affected: SA6155P Affected: SA7255P Affected: SA7775P Affected: SA8155P Affected: SA8195P Affected: SA8255P Affected: SA8295P Affected: SA8540P Affected: SA8620P Affected: SA8770P Affected: SA9000P Affected: SRV1H Affected: SRV1L Affected: SRV1M |
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CVE-2026-25271 (GCVE-0-2026-25271)
Vulnerability from cvelistv5 – Published: 2026-07-06 20:09 – Updated: 2026-07-07 03:56
VLAI
EPSS
VEX
Title
Time-of-check Time-of-use (TOCTOU) Race Condition in DSP Service
Summary
Memory Corruption when processing asynchronous input parameters due to improper handling of modified values between check and use.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 00:00 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Qualcomm, Inc. | Snapdragon |
Affected:
Cologne
Affected: FastConnect 6900 Affected: FastConnect 7800 Affected: IQX5121 Affected: IQX7181 Affected: QCA0000 Affected: SC8380XP Affected: WCD9378C Affected: WCD9380 Affected: WCD9385 Affected: WSA8840 Affected: WSA8845 Affected: WSA8845H Affected: X2000077 Affected: X2000086 Affected: X2000090 Affected: X2000092 Affected: X2000094 Affected: XG101002 Affected: XG101032 Affected: XG101039 |
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CVE-2026-25260 (GCVE-0-2026-25260)
Vulnerability from cvelistv5 – Published: 2026-06-01 22:05 – Updated: 2026-06-03 03:55
VLAI
EPSS
VEX
Title
Time-of-check Time-of-use (TOCTOU) Race Condition in DSP Service
Summary
Memory Corruption when accessing shared buffers without validation of concurrent user-mode input modifications.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 00:00 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Qualcomm, Inc. | Snapdragon |
Affected:
Cologne
Affected: FastConnect 6900 Affected: FastConnect 7800 Affected: QCA0000 Affected: SC8380XP Affected: WCD9378C Affected: WCD9380 Affected: WCD9385 Affected: WSA8840 Affected: WSA8845 Affected: WSA8845H Affected: X2000077 Affected: X2000086 Affected: X2000090 Affected: X2000092 Affected: X2000094 Affected: XG101002 Affected: XG101032 Affected: XG101039 |
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CVE-2026-25052 (GCVE-0-2026-25052)
Vulnerability from cvelistv5 – Published: 2026-02-04 16:47 – Updated: 2026-02-05 14:36
VLAI
EPSS
VEX
Title
n8n Improper File Access Controls Allow Arbitrary File Read by Authenticated Users
Summary
n8n is an open source workflow automation platform. Prior to versions 1.123.18 and 2.5.0, a vulnerability in the file access controls allows authenticated users with permission to create or modify workflows to read sensitive files from the n8n host system. This can be exploited to obtain critical configuration data and user credentials, leading to complete account takeover of any user on the instance. This issue has been patched in versions 1.123.18 and 2.5.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-05 14:23 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/n8n-io/n8n/security/advisories… | x_refsource_CONFIRM |
Impacted products
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CVE-2026-24260 (GCVE-0-2026-24260)
Vulnerability from cvelistv5 – Published: 2026-07-01 14:34 – Updated: 2026-07-02 03:57
VLAI
EPSS
VEX
Summary
NVIDIA Container Toolkit for Linux contains a vulnerability where an attacker could cause a time-of-check time-of-use race condition. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, and data tampering.
Severity
8.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-01 00:00 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| NVIDIA | Container Toolkit |
Affected:
All versions up to and including 1.19.0
|
|
| NVIDIA | GPU Operator |
Affected:
All versions up to and including 26.3.1
|
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CVE-2026-24191 (GCVE-0-2026-24191)
Vulnerability from cvelistv5 – Published: 2026-05-26 17:23 – Updated: 2026-05-27 15:40
VLAI
EPSS
VEX
Summary
NVIDIA Display Driver for Windows contains a vulnerability where an attacker could cause a time-of-check time-of-use issue. A successful exploit of this vulnerability might lead to denial of service, escalation of privileges, information disclosure, data tampering, and code execution.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 00:00 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
Impacted products
13 products
| Vendor | Product | Version | |
|---|---|---|---|
| NVIDIA | GeForce |
Affected:
All driver versions prior to 596.36
|
|
| NVIDIA | GeForce |
Affected:
All driver versions prior to 582.53 Only GPUs based on the NVIDIA Maxwell, Volta, and Pascal GPU architectures are affected.
|
|
| NVIDIA | NVIDIA RTX, Quadro, NVS |
Affected:
All driver versions prior to 596.36
|
|
| NVIDIA | NVIDIA RTX, Quadro, NVS |
Affected:
All driver versions prior to 582.53
|
|
| NVIDIA | NVIDIA RTX, Quadro, NVS |
Affected:
All driver versions prior to 539.72
|
|
| NVIDIA | Tesla |
Affected:
All driver versions prior to 596.36
|
|
| NVIDIA | Tesla |
Affected:
All driver versions prior to 582.53
|
|
| NVIDIA | Tesla |
Affected:
All driver versions prior to 539.72
|
|
| NVIDIA | Guest driver |
Affected:
595.97(All versions prior to and including vGPU 20.0)
|
|
| NVIDIA | Guest driver |
Affected:
582.16(All versions prior to and including vGPU 19.4)
|
|
| NVIDIA | Guest driver |
Affected:
539.64(All versions prior to and including vGPU 16.13)
|
|
| NVIDIA | Virtual GPU Manager |
Affected:
595.94(All versions prior to and including vGPU 20.0)
|
|
| NVIDIA | Virtual GPU Manager |
Affected:
582.16(All versions prior to and including vGPU 19.4)
|
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CVE-2026-24071 (GCVE-0-2026-24071)
Vulnerability from cvelistv5 – Published: 2026-02-02 13:23 – Updated: 2026-02-03 14:42
VLAI
EPSS
VEX
Title
XPC Client Validation via PID leading to Local Privilege Escalation in Native Instruments Native Access
Summary
It was found that the XPC service offered by the privileged helper of Native Access uses the PID of the connecting client to verify its code signature. This is considered insecure and can be exploited by PID reuse attacks. The connection handler function uses _xpc_connection_get_pid(arg2) as argument for the hasValidSignature function. This value can not be trusted since it is vulnerable to PID reuse attacks.
Severity
7.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-02 17:08 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://sec-consult.com/vulnerability-lab/advisor… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Native Instruments | Native Access |
Affected:
verified up to 3.22.0
|
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CVE-2026-24067 (GCVE-0-2026-24067)
Vulnerability from cvelistv5 – Published: 2026-06-10 11:49 – Updated: 2026-06-10 14:24
VLAI
EPSS
VEX
Title
Slate Digital Connect macOS XPC PID validation privilege escalation
Summary
Slate Digital Connect 1.37.0 for macOS installs a privileged helper tool, com.slatedigital.connect.privileged.helper.tool, which exposes the XPC service com.slatedigital.connect.privileged.helper.tool2. The helper validates connecting XPC clients by obtaining the client's process identifier and using it to retrieve code-signing information for the process. This PID-based client validation is subject to a time-of-check time-of-use race condition because process identifiers can be reused. A local attacker can exploit PID reuse so that validation is performed against a trusted process instead of the original connecting process. This allows unauthorized access to privileged helper functionality and may lead to local privilege escalation.
Severity
8.4 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 14:22 UTC
CWE
- CWE-367 - Time-of-check time-of-use (TOCTOU) race condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://r.sec-consult.com/slate | third-party-advisory |
| https://sec-consult.com/vulnerability-lab/advisor… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Slate Digital LLC | Slate Digital Connect |
Affected:
1.37.0
(semver)
|
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CVE-2026-24065 (GCVE-0-2026-24065)
Vulnerability from cvelistv5 – Published: 2026-06-09 14:50 – Updated: 2026-06-09 15:58
VLAI
EPSS
VEX
Title
Local Privilege Escalation via Insecure XPC Client Validation in Waves Central for macOS
Summary
Waves Central for macOS versions 13.0.9 through 16.5.5 contain a local privilege escalation vulnerability in the privileged helper service. The helper validates connecting XPC clients using the client process identifier (PID) to verify code-signing identity. Because process identifiers can be reused, a local attacker can exploit a race condition between the time a connection request is made and the time the helper performs validation, causing the helper to trust an attacker-controlled process. This allows the attacker to invoke privileged operations, resulting in arbitrary code execution as root. The issue is fixed in version 16.6.2.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-09 15:57 UTC
CWE
- CWE-367 - Time-of-check time-of-use (TOCTOU) race condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://r.sec-consult.com/waves | third-party-advisory |
| https://sec-consult.com/vulnerability-lab/advisor… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Waves Audio Ltd. | Waves Central |
Affected:
13.0.9 , ≤ 16.5.5
(semver)
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Mitigation
Implementation
The most basic advice for TOCTOU vulnerabilities is to not perform a check before the use. This does not resolve the underlying issue of the execution of a function on a resource whose state and identity cannot be assured, but it does help to limit the false sense of security given by the check.
Mitigation
Implementation
When the file being altered is owned by the current user and group, set the effective gid and uid to that of the current user and group when executing this statement.
Mitigation
Architecture and Design
Limit the interleaving of operations on files from multiple processes.
Mitigation
Implementation
Architecture and Design
If you cannot perform operations atomically and you must share access to the resource between multiple processes or threads, then try to limit the amount of time (CPU cycles) between the check and use of the resource. This will not fix the problem, but it could make it more difficult for an attack to succeed.
Mitigation
Implementation
Recheck the resource after the use call to verify that the action was taken appropriately.
Mitigation
Architecture and Design
Ensure that some environmental locking mechanism can be used to protect resources effectively.
Mitigation
Implementation
Ensure that locking occurs before the check, as opposed to afterwards, such that the resource, as checked, is the same as it is when in use.
CAPEC-27: Leveraging Race Conditions via Symbolic Links
This attack leverages the use of symbolic links (Symlinks) in order to write to sensitive files. An attacker can create a Symlink link to a target file not otherwise accessible to them. When the privileged program tries to create a temporary file with the same name as the Symlink link, it will actually write to the target file pointed to by the attackers' Symlink link. If the attacker can insert malicious content in the temporary file they will be writing to the sensitive file by using the Symlink. The race occurs because the system checks if the temporary file exists, then creates the file. The attacker would typically create the Symlink during the interval between the check and the creation of the temporary file.
CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.