CWE-208
Observable Timing Discrepancy
Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.
CVE-2025-27936 (GCVE-0-2025-27936)
Vulnerability from cvelistv5 – Published: 2025-04-16 09:14 – Updated: 2025-04-16 14:32
VLAI
Title
Webhook Secret Exposure via Timing attack in MSteams plugin
Summary
Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison.
Severity
5.3 (Medium)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.5.0 , ≤ 10.5.1
(semver)
Unaffected: 10.6.0 Unaffected: 10.5.2 |
Credits
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CVE-2025-29780 (GCVE-0-2025-29780)
Vulnerability from cvelistv5 – Published: 2025-03-14 17:26 – Updated: 2025-03-19 15:27
VLAI
Title
Post-Quantum Secure Feldman's Verifiable Secret Sharing has Timing Side-Channels in Matrix Operations
Summary
Post-Quantum Secure Feldman's Verifiable Secret Sharing provides a Python implementation of Feldman's Verifiable Secret Sharing (VSS) scheme. In versions 0.8.0b2 and prior, the `feldman_vss` library contains timing side-channel vulnerabilities in its matrix operations, specifically within the `_find_secure_pivot` function and potentially other parts of `_secure_matrix_solve`. These vulnerabilities are due to Python's execution model, which does not guarantee constant-time execution. An attacker with the ability to measure the execution time of these functions (e.g., through repeated calls with carefully crafted inputs) could potentially recover secret information used in the Verifiable Secret Sharing (VSS) scheme. The `_find_secure_pivot` function, used during Gaussian elimination in `_secure_matrix_solve`, attempts to find a non-zero pivot element. However, the conditional statement `if matrix[row][col] != 0 and row_random < min_value:` has execution time that depends on the value of `matrix[row][col]`. This timing difference can be exploited by an attacker. The `constant_time_compare` function in this file also does not provide a constant-time guarantee. The Python implementation of matrix operations in the _find_secure_pivot and _secure_matrix_solve functions cannot guarantee constant-time execution, potentially leaking information about secret polynomial coefficients. An attacker with the ability to make precise timing measurements of these operations could potentially extract secret information through statistical analysis of execution times, though practical exploitation would require significant expertise and controlled execution environments. Successful exploitation of these timing side-channels could allow an attacker to recover secret keys or other sensitive information protected by the VSS scheme. This could lead to a complete compromise of the shared secret. As of time of publication, no patched versions of Post-Quantum Secure Feldman's Verifiable Secret Sharing exist, but other mitigations are available. As acknowledged in the library's documentation, these vulnerabilities cannot be adequately addressed in pure Python. In the short term, consider using this library only in environments where timing measurements by attackers are infeasible. In the medium term, implement your own wrappers around critical operations using constant-time libraries in languages like Rust, Go, or C. In the long term, wait for the planned Rust implementation mentioned in the library documentation that will properly address these issues.
Severity
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/DavidOsipov/PostQuantum-Feldma… | x_refsource_CONFIRM |
| https://en.wikipedia.org/wiki/Side-channel_attack | x_refsource_MISC |
| https://www.rambus.com/wp-content/uploads/2015/08… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| DavidOsipov | PostQuantum-Feldman-VSS |
Affected:
<= 0.8.0b2
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CVE-2025-30344 (GCVE-0-2025-30344)
Vulnerability from cvelistv5 – Published: 2025-03-21 00:00 – Updated: 2025-03-21 15:08
VLAI
Summary
An issue was discovered in OpenSlides before 4.2.5. During login at the /system/auth/login/ endpoint, the system's response times differ depending on whether a user exists in the system. The timing discrepancy stems from the omitted hashing of the password (e.g., more than 100 milliseconds).
Severity
5.3 (Medium)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Intevation | OpenSlides |
Affected:
0 , < 4.2.5
(custom)
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CVE-2025-43754 (GCVE-0-2025-43754)
Vulnerability from cvelistv5 – Published: 2025-08-21 17:10 – Updated: 2025-08-21 20:01
VLAI
Summary
Username enumeration vulnerability in Liferay Portal 7.4.0 through 7.4.3.132, and Liferay DXP 2024.Q4.0 through 2024.Q4.7, 2024.Q3.0 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.14 and 7.4 GA through update 92 allows attackers to determine if an account exist in the application by inspecting the server processing time of the login request.
Severity
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
1 reference
Impacted products
2 products
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CVE-2025-46570 (GCVE-0-2025-46570)
Vulnerability from cvelistv5 – Published: 2025-05-29 16:32 – Updated: 2025-05-29 18:05
VLAI
Title
vLLM’s Chunk-Based Prefix Caching Vulnerable to Potential Timing Side-Channel
Summary
vLLM is an inference and serving engine for large language models (LLMs). Prior to version 0.9.0, when a new prompt is processed, if the PageAttention mechanism finds a matching prefix chunk, the prefill process speeds up, which is reflected in the TTFT (Time to First Token). These timing differences caused by matching chunks are significant enough to be recognized and exploited. This issue has been patched in version 0.9.0.
Severity
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/vllm-project/vllm/security/adv… | x_refsource_CONFIRM |
| https://github.com/vllm-project/vllm/pull/17045 | x_refsource_MISC |
| https://github.com/vllm-project/vllm/commit/77073… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| vllm-project | vllm |
Affected:
< 0.9.0
|
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CVE-2025-48995 (GCVE-0-2025-48995)
Vulnerability from cvelistv5 – Published: 2025-06-02 16:23 – Updated: 2025-06-02 16:41
VLAI
Title
SignXML's signature verification with HMAC is vulnerable to a timing attack
Summary
SignXML is an implementation of the W3C XML Signature standard in Python. When verifying signatures with X509 certificate validation turned off and HMAC shared secret set (`signxml.XMLVerifier.verify(require_x509=False, hmac_key=...`), versions of SignXML prior to 4.0.4 are vulnerable to a potential timing attack. The verifier may leak information about the correct HMAC when comparing it with the user supplied hash, allowing users to reconstruct the correct HMAC for any data.
Severity
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/XML-Security/signxml/security/… | x_refsource_CONFIRM |
| https://github.com/XML-Security/signxml/commit/1b… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| XML-Security | signxml |
Affected:
< 4.0.4
|
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CVE-2025-52457 (GCVE-0-2025-52457)
Vulnerability from cvelistv5 – Published: 2025-11-18 03:25 – Updated: 2025-11-19 16:49
VLAI
Summary
Observable Timing Discrepancy (CWE-208) in HBUS devices may allow an attacker with physical access to the device to extract device-specific keys, potentially compromising further site security.
This issue affects Command Centre Server:
9.30 prior to vCR9.30.251028a (distributed in 9.30.2881 (MR3)), 9.20 prior to vCR9.20.251028a (distributed in 9.20.3265 (MR5)), 9.10 prior to vCR9.10.251028a (distributed in 9.10.4135 (MR8)), all versions of 9.00 and prior.
Severity
5.7 (Medium)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Gallagher | HBUS Devices |
Affected:
0 , ≤ 9.00
(custom)
Affected: 9.30 , < vCR9.30.251028a (custom) Affected: 9.20 , < vCR9.20.251028a (custom) Affected: 9.10 , < vCR9.10.251028a (custom) |
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CVE-2025-53940 (GCVE-0-2025-53940)
Vulnerability from cvelistv5 – Published: 2025-07-24 22:23 – Updated: 2025-07-25 13:30
VLAI
Title
Quiet uses insecure, inconsistent verification on local backend token
Summary
Quiet is an alternative to team chat apps like Slack, Discord, and Element that does not require trusting a central server or running one's own. In versions 6.1.0-alpha.4 and below, Quiet's API for backend/frontend communication was using an insecure, not constant-time comparison function for token verification. This allowed for a potential timing attack where an attacker would try different token values and observe tiny differences in the response time (wrong characters fail faster) to guess the whole token one character at a time. This is fixed in version 6.0.1.
Severity
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/TryQuiet/quiet/security/adviso… | x_refsource_CONFIRM |
| https://github.com/TryQuiet/quiet/issues/2820#iss… | x_refsource_MISC |
| https://github.com/TryQuiet/quiet/pull/2928 | x_refsource_MISC |
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CVE-2025-54499 (GCVE-0-2025-54499)
Vulnerability from cvelistv5 – Published: 2025-10-16 08:17 – Updated: 2025-10-16 13:51
VLAI
Title
Insecure string comparison enables timing attacks
Summary
Mattermost versions 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to use constant-time comparison for sensitive string comparisons which allows attackers to exploit timing oracles to perform byte-by-byte brute force attacks via response time analysis on Cloud API keys and OAuth client secrets
Severity
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.5.0 , ≤ 10.5.10
(semver)
Affected: 10.11.0 , ≤ 10.11.2 (semver) Unaffected: 10.12.0 Unaffected: 10.5.11 Unaffected: 10.11.3 |
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CVE-2025-59058 (GCVE-0-2025-59058)
Vulnerability from cvelistv5 – Published: 2025-09-12 13:10 – Updated: 2025-09-12 13:45
VLAI
Title
httpsig-rs's HMAC verification is vulnerable to timing attack
Summary
httpsig-rs is a Rust implementation of IETF RFC 9421 http message signatures. Prior to version 0.0.19, the HMAC signature comparison is not timing-safe. This makes anyone who uses HS256 signature verification vulnerable to a timing attack that allows the attacker to forge a signature. Version 0.0.19 fixes the issue.
Severity
5.9 (Medium)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/junkurihara/httpsig-rs/securit… | x_refsource_CONFIRM |
| https://github.com/junkurihara/httpsig-rs/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| junkurihara | httpsig-rs |
Affected:
< 0.0.19
|
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No mitigation information available for this CWE.
CAPEC-462: Cross-Domain Search Timing
An attacker initiates cross domain HTTP / GET requests and times the server responses. The timing of these responses may leak important information on what is happening on the server. Browser's same origin policy prevents the attacker from directly reading the server responses (in the absence of any other weaknesses), but does not prevent the attacker from timing the responses to requests that the attacker issued cross domain.
CAPEC-541: Application Fingerprinting
An adversary engages in fingerprinting activities to determine the type or version of an application installed on a remote target.
CAPEC-580: System Footprinting
An adversary engages in active probing and exploration activities to determine security information about a remote target system. Often times adversaries will rely on remote applications that can be probed for system configurations.