Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Jenkins project | Jenkins GitHub Plugin | unspecified – ≤ 1.34.4 | 1.34.3.1 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenShift 4 | jenkins | 2.361.1.1672840472-1.el8 | RHSA-2023:0777, RHSA-2023:0017 |
| Red Hat OpenShift 4 | jenkins-2-plugins | 4.8.1672842762-1.el8 | RHSA-2023:0777, RHSA-2023:0560, RHSA-2023:0017 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | com.coravy.hudson.plugins.github:github | < 1.34.5 | 1.34.5 | GHSA-mxcc-7h5m-x57r |
Advisories 4
- RHSA-2023:0777 Red Hat Security Advisory: OpenShift Container Platform 4.9.56 security update Red Hat Security Advisories (RHSA) · Oct 13, 2026
- RHSA-2023:0017 Red Hat Security Advisory: OpenShift Container Platform 4.8.56 packages and security update Red Hat Security Advisories (RHSA) · Oct 13, 2026
- RHSA-2023:0560 Red Hat Security Advisory: OpenShift Container Platform 4.10.51 security update Red Hat Security Advisories (RHSA) · Oct 8, 2026
- WID-SEC-2022-0852 Jenkins: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 12, 2023