5.3

CVE-2024-23903: jenkins project jenkins gitlab branch source plugin Incorrect Comparison

CVSS: 5.3v3.1MediumModified
AliasesGHSA-f67f-2j6r-m4c9
Published 24-01-2024Last modified 13-02-2025
Open JSON

Vulnerability summary

CVE-2024-23903 is a medium (CVSS 5.3) Incorrect Comparison vulnerability in jenkins project jenkins gitlab branch source plugin. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.6% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.50%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-01-2024
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.50%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

0.00 pp

From 0.50% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.50%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Io.jenkins.plugins1 product
  • gitlab-branch-source< 688.v5fa
Jenkins1 product
Jenkins project1 product

3 vendors · 3 products

References

5 links