Path traversal in Jenkins Mercurial Plugin

published 2022-05-17 4 y ago modified 2026-06-17 4 mo ago also GHSA-5786-3qjg-mr88 , EUVD-2022-2520

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.5%; EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits: 0; none known

Jenkins Mercurial Plugin 2.16 and earlier allows attackers able to configure pipelines to check out some SCM repositories stored on the Jenkins controller's file system using local paths as SCM URLs, obtaining limited information about other projects' SCM contents.

Patch / fix

fixed in 2 distros 1 links 1

maven org.jenkins-ci.plugins:mercurial 2.16.1
Jenkins project Jenkins Mercurial Plugin 2.15.1

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-2023:0017

github.com/jenkinsci/mercurial-plugin@b995436 commit

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-2022-30948 updated 2025-11-21 cvss 7.5

plugin: Mercurial SCM plugin can check out from the controller file system

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 4.8 jenkins 2.361.1.1672840472-1.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

1.52% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	org.jenkins-ci.plugins:mercurial	<2.16.1	2.16.1

Affected products

Jenkins project Jenkins Mercurial Plugin

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

github.com /jenkinsci/mercurial-plugin/commit/b995436e560b01818f5d9e9920990370cc575341
web
jenkins.io /security/advisory/2022-05-17/#SECURITY-2478
web, vendor-advisory
openwall.com /lists/oss-security/2022/05/17/8
mailing-list, web, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2022-30948
advisory
github.com /jenkinsci/mercurial-plugin
package

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.

Summary