CVE-2024-56138
Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LSummary
CVE-2024-56138 is a medium-severity Improper Check for Certificate Revocation (CWE-299) vulnerability. Its CVSS base score is 4.0 (Medium).
Operationally, ranked at the 3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-0008
Vulnerability Data
notion-go is a collection of libraries for supporting sign and verify OCI artifacts. Based on Notary Project specifications. This issue was identified during Quarkslab's audit of the timestamp feature. During the timestamp signature generation, the revocation status of the certificate(s)…
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used to generate the timestamp signature was not verified. During timestamp signature generation, notation-go did not check the revocation status of the certificate chain used by the TSA. This oversight creates a vulnerability that could be exploited through a Man-in-The-Middle attack. An attacker could potentially use a compromised, intermediate, or revoked leaf certificate to generate a malicious countersignature, which would then be accepted and stored by `notation`. This could lead to denial of service scenarios, particularly in CI/CD environments during signature verification processes because timestamp signature would fail due to the presence of a revoked certificate(s) potentially disrupting operations. This issue has been addressed in release version 1.3.0-rc.2 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
- CWE(s)
Related Threats
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Affected Assets
Mitigating Controls
Control response
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V12.1.4
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Certificate-based authentication requires valid, non-revoked certificates; proper revocation checking is a core implementation detail of this control.
Protecting data-in-transit commonly relies on TLS certificate validation that includes revocation status checks.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Mandates use of cryptography including certificate validation and revocation checking.
Security testing can detect missing or incorrect certificate revocation checks.
Secure coding practices should include proper certificate revocation verification.
Requires secure authentication mechanisms that rely on valid certificates.
Network security controls can enforce certificate validation at network boundaries.
Security of network services includes certificate-based authentication and revocation checks.