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Fencer Vulns
medium 5.3

CVE-2022-36885 json

Jenkins GitHub plugin uses weak webhook signature function

published 2022-07-27 4 y ago modified 2026-06-17 4 mo ago also GHSA-mxcc-7h5m-x57r , EUVD-2022-6379

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

Jenkins GitHub Plugin 1.34.4 and earlier uses a non-constant time comparison function when checking whether the provided and computed webhook signatures are equal, allowing attackers to use statistical methods to obtain a valid webhook signature.

Patch / fix

  • maven com.coravy.hudson.plugins.github:github 1.34.5
  • Jenkins project Jenkins GitHub Plugin 1.34.1.1, 1.34.3.1
  • jenkins openshift 4.9 2.361.1.1675668150-1.el8
  • jenkins-2-plugins openshift 4.9 4.9.1675668922-1.el8
  • jenkins-2-plugins openshift 4.10 4.10.1675144701-1.el8
  • jenkins openshift 4.8 2.361.1.1672840472-1.el8
  • jenkins-2-plugins openshift 4.8 4.8.1672842762-1.el8

red hat advisories RHSA-2023:0777RHSA-2023:0560RHSA-2023:0017

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-36885 updated cvss 5.3

plugin: Non-constant time webhook signature comparison in GitHub Plugin

  • Red Hat OpenShift Container Platform 3.11 jenkins-2-plugins
    affected: no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 4.8 jenkins-2-plugins 4.8.1672842762-1.el8
    fixed: vendor fix RHSA-2023:0017
  • Red Hat OpenShift Container Platform 4.9 jenkins-2-plugins 4.9.1675668922-1.el8
    fixed: vendor fix RHSA-2023:0777
  • Red Hat OpenShift Container Platform 4.10 jenkins-2-plugins 4.10.1675144701-1.el8
    fixed: vendor fix RHSA-2023:0560
  • Red Hat OpenShift Container Platform 4.8 jenkins 2.361.1.1672840472-1.el8 Red Hat OpenShift Container Platform 4.9 jenkins 2.361.1.1675668150-1.el8 Red Hat OpenShift Container Platform 4.10 cri-o 1.23.5-5.rhaos4.10.gitd9dec98.el7, cri-o 1.23.5-5.rhaos4.10.gitd9dec98.el8
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
GitHub 3.1 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
maven com.coravy.hudson.plugins.github:github
<1.34.5
1.34.5

Affected products

  • Jenkins project Jenkins GitHub Plugin

Classification

Weakness
  • CWE-203 Observable Discrepancy
  • CWE-208 Observable Timing Discrepancy

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.