Security Resilience

CVE-2024-23903

Jenkins Github Branch Source ≤ 684.vea_fa_7c1e2fe3

Published
24 January 2024
Modified
17 June 2026
Patch / advisory
View advisory
CVSS Score v3.1 5.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0050 41th percentile
Risk Priority 44 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2024-23903 is a medium-severity Incorrect Comparison (CWE-697) vulnerability in Jenkins Github Branch Source. Its CVSS base score is 5.3 (Medium).

Operationally, ranked at the 41th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and AC-25 (Reference Monitor) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Jenkins GitLab Branch Source Plugin 684.vea_fa_7c1e2fe3 and earlier uses a non-constant time comparison function when checking whether the provided and expected webhook token are equal, potentially allowing attackers to use statistical methods to obtain a valid webhook token.

CWE(s)
CWE-697

Related Threats

CVEs Like This One

CVE-2026-57285Same product: Jenkins Github Branch Source
CVE-2026-42522Same product: Jenkins Github Branch Source
CVE-2024-23902Same product: Jenkins Github Branch Source
CVE-2024-23901Same product: Jenkins Github Branch Source
CVE-2023-46656Same vendor: Jenkins
CVE-2023-41935Same vendor: Jenkins
CVE-2023-46657Same vendor: Jenkins
CVE-2023-41936Same vendor: Jenkins
CVE-2023-46658Same vendor: Jenkins
CVE-2023-46660Same vendor: Jenkins

Affected Assets

jenkins
github branch source
≤ 684.vea_fa_7c1e2fe3

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation directly exercises security-relevant comparisons to discover incorrect logic.

AC-25 Reference Monitor partial match

A reference monitor must be small and correct, structurally limiting the chance of flawed comparison logic in authorization decisions.

SA-8 Security and Privacy Engineering Principles partial match

Security engineering principles require correct implementation of comparison logic used for access and authentication decisions.

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.

A.5.20 Addressing information security within supplier agreements partial match
removes
A.5.24 Information security incident management planning and preparation partial match
removes
A.8.25 Secure development life cycle partial match
blocks

Secure development lifecycle includes code review and testing that can catch incorrect comparison logic.

A.8.26 Application security requirements partial match
blocks

Application security requirements can mandate correct comparison logic for security decisions.

A.8.27 Secure system architecture and engineering principles partial match
blocks

Secure architecture principles can require robust comparison mechanisms for access decisions.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly address avoiding incorrect comparison operators and logic.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-697, a pillar-level weakness, and none of its children carries one either.

References