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Advisory record · GHSA-phhv-63fh-rrc8

Jenkins has a DNS rebinding vulnerability in WebSocket CLI origin validation

CVSS 7.5 HighEPSS 0.0028 · 21st percentile

Published by the GitHub Advisory Database at 18 Mar 2026, 18:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.jenkins-ci.main:jenkins-coreMaven>=2.442, <2.5552.555
Identifiers
GHSA-phhv-63fh-rrc8 · BIT-jenkins-2026-33002 · CVE-2026-33002
Weakness (CWE)
CWE-346 · CWE-350
Tags
Published
18 Mar 2026
Updated
16 Apr 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.0028, the 21st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:20 UTC First seen by agentprime
  2. 31 Oct 2026, 14:20 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.