Common Weakness Enumeration

CWE-385

Covert Timing Channel

Covert timing channels convey information by modulating some aspect of system behavior over time, so that the program receiving the information can observe system behavior and infer protected information.

CVE-2024-2236 (GCVE-0-2024-2236)

Vulnerability from cvelistv5 – Published: 2024-03-06 22:07 – Updated: 2026-02-25 19:22
VLAI
Title
Libgcrypt: vulnerable to marvin attack
Summary
A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2024:9404 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:3530 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:3534 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2024-2236 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2245218 issue-trackingx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2268268 issue-trackingx_refsource_REDHATx_transferred
Impacted products
Vendor Product Version
Affected: 0 , < 9.4.0 (semver)
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.10.0-11.el9 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:1.10.0-10.el9_2.1 , < * (rpm)
    cpe:/o:redhat:rhel_eus:9.2::baseos
    cpe:/a:redhat:rhel_eus:9.2::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.10.0-10.el9_4.1 , < * (rpm)
    cpe:/o:redhat:rhel_eus:9.4::baseos
    cpe:/a:redhat:rhel_eus:9.4::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
 Create a notification for this product.
Date Public
2024-03-06 00:00
Show details on NVD website
To clipboard 

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CVE-2024-23342 (GCVE-0-2024-23342)

Vulnerability from cvelistv5 – Published: 2024-01-22 23:09 – Updated: 2025-05-30 14:21
VLAI
Title
python-ecdsa vulnerable to Minerva attack on P-256
Summary
The `ecdsa` PyPI package is a pure Python implementation of ECC (Elliptic Curve Cryptography) with support for ECDSA (Elliptic Curve Digital Signature Algorithm), EdDSA (Edwards-curve Digital Signature Algorithm) and ECDH (Elliptic Curve Diffie-Hellman). Versions 0.18.0 and prior are vulnerable to the Minerva attack. As of time of publication, no known patched version exists.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-203 - Observable Discrepancy
  • CWE-208 - Observable Timing Discrepancy
  • CWE-385 - Covert Timing Channel
Assigner
References
Impacted products
Vendor Product Version
tlsfuzzer python-ecdsa Affected: <= 0.18.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2024-25964 (GCVE-0-2024-25964)

Vulnerability from cvelistv5 – Published: 2024-03-25 08:13 – Updated: 2024-08-23 18:53
VLAI
Summary
Dell PowerScale OneFS 9.5.0.x through 9.7.0.x contain a covert timing channel vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to denial of service.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Dell PowerScale OneFS Affected: 9.5.0.0 , ≤ 9.5.0.6 (semver)
Affected: 9.6.1.0 , ≤ 9.7.0.0 (semver)
Create a notification for this product.
dell powerscale_onefs Affected: 9.5.0.0 , ≤ 9.5.0.6 (custom)
Affected: 9.6.1 , ≤ 9.7.0.0 (custom)
    cpe:2.3:a:dell:powerscale_onefs:9.5.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:dell:powerscale_onefs:9.6.1:*:*:*:*:*:*:*
 Create a notification for this product.
Date Public
2024-03-04 06:30
Show details on NVD website
To clipboard 

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CVE-2024-36405 (GCVE-0-2024-36405)

Vulnerability from cvelistv5 – Published: 2024-06-10 12:47 – Updated: 2024-08-02 03:37
VLAI
Title
Control-flow timing leak in Kyber reference implementation when compiled with Clang 15-18 for -Os, -O1 and other options
Summary
liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. A control-flow timing lean has been identified in the reference implementation of the Kyber key encapsulation mechanism when it is compiled with Clang 15-18 for `-Os`, `-O1`, and other compilation options. A proof-of-concept local attack on the reference implementation leaks the entire ML-KEM 512 secret key in ~10 minutes using end-to-end decapsulation timing measurements. The issue has been fixed in version 0.10.1. As a possible workaround, some compiler options may produce vectorized code that does not leak secret information, however relying on these compiler options as a workaround may not be reliable.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-208 - Observable Timing Discrepancy
  • CWE-385 - Covert Timing Channel
Assigner
References
Impacted products
Vendor Product Version
open-quantum-safe liboqs Affected: < 0.10.1
Create a notification for this product.
open_quantum_safe liboqs Affected: 0 , ≤ 0.10.0 (custom)
    cpe:2.3:a:open_quantum_safe:liboqs:*:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-0306 (GCVE-0-2025-0306)

Vulnerability from cvelistv5 – Published: 2025-01-09 04:05 – Updated: 2026-06-29 23:24
VLAI
Title
Ruby: openssl: ruby marvin attack
Summary
A vulnerability was found in Ruby. The Ruby interpreter is vulnerable to the Marvin Attack. This attack allows the attacker to decrypt previously encrypted messages or forge signatures by exchanging a large number of messages with the vulnerable service.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Affected: 0 , < * (semver)
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
 Create a notification for this product.
Red Hat Red Hat Storage 3     cpe:/a:redhat:storage:3
 Create a notification for this product.
Date Public
2024-06-24 00:00
Credits
This issue was discovered by Alicja Kario (Red Hat).
Show details on NVD website
To clipboard 

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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
5.8 (Medium)
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-203 - Observable Discrepancy
  • CWE-208 - Observable Timing Discrepancy
  • CWE-385 - Covert Timing Channel
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2025-49087 (GCVE-0-2025-49087)

Vulnerability from cvelistv5 – Published: 2025-07-20 00:00 – Updated: 2025-07-21 20:37
VLAI
Summary
In Mbed TLS 3.6.1 through 3.6.3 before 3.6.4, a timing discrepancy in block cipher padding removal allows an attacker to recover the plaintext when PKCS#7 padding mode is used.
Severity
4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Mbed mbedtls Affected: 3.6.1 , < 3.6.4 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-53826 (GCVE-0-2025-53826)

Vulnerability from cvelistv5 – Published: 2025-07-15 18:12 – Updated: 2025-07-15 18:37
VLAI
Title
FileBrowser Has Insecure JWT Handling Which Allows Session Replay Attacks after Logout
Summary
File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename, and edit files. In version 2.39.0, File Browser’s authentication system issues long-lived JWT tokens that remain valid even after the user logs out. As of time of publication, no known patches exist.
Severity
7.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-305 - Authentication Bypass by Primary Weakness
  • CWE-385 - Covert Timing Channel
  • CWE-613 - Insufficient Session Expiration
Assigner
References
Impacted products
Vendor Product Version
filebrowser filebrowser Affected: = 2.39.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-59425 (GCVE-0-2025-59425)

Vulnerability from cvelistv5 – Published: 2025-10-07 14:06 – Updated: 2025-10-07 15:28
VLAI
Title
vLLM vulnerable to timing attack at bearer auth
Summary
vLLM is an inference and serving engine for large language models (LLMs). Before version 0.11.0rc2, the API key support in vLLM performs validation using a method that was vulnerable to a timing attack. API key validation uses a string comparison that takes longer the more characters the provided API key gets correct. Data analysis across many attempts could allow an attacker to determine when it finds the next correct character in the key sequence. Deployments relying on vLLM's built-in API key validation are vulnerable to authentication bypass using this technique. Version 0.11.0rc2 fixes the issue.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
vllm-project vllm Affected: < 0.11.0rc2
Create a notification for this product.
Show details on NVD website
To clipboard 

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          "name": "https://github.com/vllm-project/vllm/commit/ee10d7e6ff5875386c7f136ce8b5f525c8fcef48",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vllm-project/vllm/commit/ee10d7e6ff5875386c7f136ce8b5f525c8fcef48"
        },
        {
          "name": "https://github.com/vllm-project/vllm/blob/4b946d693e0af15740e9ca9c0e059d5f333b1083/vllm/entrypoints/openai/api_server.py#L1270-L1274",
          "tags": [
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          "url": "https://github.com/vllm-project/vllm/blob/4b946d693e0af15740e9ca9c0e059d5f333b1083/vllm/entrypoints/openai/api_server.py#L1270-L1274"
        },
        {
          "name": "https://github.com/vllm-project/vllm/releases/tag/v0.11.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vllm-project/vllm/releases/tag/v0.11.0"
        }
      ],
      "source": {
        "advisory": "GHSA-wr9h-g72x-mwhm",
        "discovery": "UNKNOWN"
      },
      "title": "vLLM vulnerable to timing attack at bearer auth"
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  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-59425",
    "datePublished": "2025-10-07T14:06:49.042Z",
    "dateReserved": "2025-09-15T19:13:16.905Z",
    "dateUpdated": "2025-10-07T15:28:10.303Z",
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CVE-2025-59432 (GCVE-0-2025-59432)

Vulnerability from cvelistv5 – Published: 2025-09-22 19:22 – Updated: 2026-01-23 17:27
VLAI
Title
Timing Attack Vulnerability in SCRAM Authentication
Summary
SCRAM (Salted Challenge Response Authentication Mechanism) is part of the family of Simple Authentication and Security Layer (SASL, RFC 4422) authentication mechanisms. Prior to version 3.2, a timing attack vulnerability exists in the SCRAM Java implementation. The issue arises because Arrays.equals was used to compare secret values such as client proofs and server signatures. Since Arrays.equals performs a short-circuit comparison, the execution time varies depending on how many leading bytes match. This behavior could allow an attacker to perform a timing side-channel attack and potentially infer sensitive authentication material. All users relying on SCRAM authentication are impacted. This vulnerability has been patched in version 3.1 by replacing Arrays.equals with MessageDigest.isEqual, which ensures constant-time comparison.
Severity
6.6 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-208 - Observable Timing Discrepancy
  • CWE-385 - Covert Timing Channel
Assigner
References
Impacted products
Vendor Product Version
ongres scram Affected: < 3.2
Create a notification for this product.
Show details on NVD website
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Mitigation

Phase: Architecture and Design

Description:

  • Whenever possible, specify implementation strategies that do not introduce time variances in operations.
Mitigation

Phase: Implementation

Description:

  • Often one can artificially manipulate the time which operations take or -- when operations occur -- can remove information from the attacker.
Mitigation

Phase: Implementation

Description:

  • It is reasonable to add artificial or random delays so that the amount of CPU time consumed is independent of the action being taken by the application.
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.

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