How severe is GHSA-4jhm-5f7g-75fp?

GHSA-4jhm-5f7g-75fp has a CVSS score of 8.2/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-4jhm-5f7g-75fp?

GHSA-4jhm-5f7g-75fp affects the following packages: org.jenkins-ci.main:jenkins-core (Maven), org.jenkins-ci.main:jenkins-core (Maven). Ecosystems affected: Maven.

How do I fix GHSA-4jhm-5f7g-75fp?

Update org.jenkins-ci.main:jenkins-core to 2.138.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4jhm-5f7g-75fp is resolved across your whole dependency graph.

How do I detect GHSA-4jhm-5f7g-75fp in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.main:jenkins-core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-4jhm-5f7g-75fp if there is no patch (or I can't update yet)?

Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Is GHSA-4jhm-5f7g-75fp actively exploited in the wild?

Yes. There are 1 known exploit references for GHSA-4jhm-5f7g-75fp, including 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for GHSA-4jhm-5f7g-75fp?

GHSA-4jhm-5f7g-75fp has an EPSS (Exploit Prediction Scoring System) score of 6.8%, placing it in the 94th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-4jhm-5f7g-75fp?

GHSA-4jhm-5f7g-75fp is classified as Path Traversal (CWE-22). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was GHSA-4jhm-5f7g-75fp published, and has it been updated?

GHSA-4jhm-5f7g-75fp was published on May 13, 2022 and was last updated on February 16, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

HIGH severity

Improper Limitation of a Pathname to a Restricted Directory in JenkinsGHSA-4jhm-5f7g-75fp

HIGHFix: jenkinsci/jenkins@4ed66e5

GHSA-4jhm-5f7g-75fp is a high-severity (CVSS 8.2) Path Traversal vulnerability in org.jenkins-ci.main:jenkins-core. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for org.jenkins-ci.main:jenkins-core — see the affected versions and patch details below.

Also known asCVE-2018-1000863

Published

May 13, 2022

Updated

Feb 16, 2024

Affected

2 pkgs

Patched

2 / 2

Exploits

1 known

Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

6.8%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs94th percentile — riskier than 94% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected

☕org.jenkins-ci.main:jenkins-core☕org.jenkins-ci.main:jenkins-core

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

A data modification vulnerability exists in Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in User.java, IdStrategy.java that allows attackers to submit crafted user names that can cause an improper migration of user record storage formats, potentially preventing the victim from logging into Jenkins.

Affected Packages

2 total 2 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.jenkins-ci.main:jenkins-core`	all versions	2.138.4`org.jenkins-ci.main:jenkins-core:2.138.4`
☕Maven	`org.jenkins-ci.main:jenkins-core`	≥ 2.140&&< 2.154	2.154`org.jenkins-ci.main:jenkins-core:2.154`

Affected Products

2 products · 3 configurations

Application

jenkinsjenkins

≤ 2.153

range

Application

openshift container platformredhat

1 version

3.11

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

A data modification vulnerability exists in Jenkins 2.153 and earlier, L…

tenable.comNVDOct 2019

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.main:jenkins-core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.jenkins-ci.main:jenkins-core to 2.138.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4jhm-5f7g-75fp is resolved across your whole dependency graph.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate

Product	Fixed in	Advisory
Red Hat OpenShift Container Platform 3.11	`jenkins-0:2.138.4.1544416383-1.el7`	RHBA-2019:0024

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is GHSA-4jhm-5f7g-75fp in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

8.2/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Raw vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

CWE Classification

CWE-22Path Traversal

Weaponization

No Nuclei template or Metasploit module yet. 1 public proof-of-concept reference is listed on this page.

OpenSSF Scorecard

Package health score

jenkins

6.4/10

Code-Review6/10

Maintained10/10

Branch-Protection3/10

Assessed Oct 26, 2026

Timeline

First exploit

Oct 3, 2019

Disclosed

May 13, 2022

Last updated

Feb 16, 2024

Identifiers

GHSA-4jhm-5f7g-75fp

References

Advisorynvd.nist.gov · CVE 2018 1000863 Webgithub.com · 4ed66e5838476e575a83c3cd13fffb37eefa2f48 Webgithub.com · 7bae6dd6ef23af988801d38dc0f8f693bc6283f8 Webaccess.redhat.com · RHBA 2019:0024 Webjenkins.io · 2018 12 05 Webtenable.com · tra 2018 43 Websecurityfocus.com Packagegithub.com · jenkins

Related vulnerabilities

This CVE is high severity; 2 of 8 other CVEs affecting jenkins-core are rated as high or higher (top: high).

CVE-2026-53436CVE-2026-53437CVE-2026-53440CVE-2026-53441CVE-2026-53439CVE-2026-53435CVE-2026-53442CVE-2026-53438

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedFeb 16, 2024

Improper Limitation of a Pathname to a Restricted Directory in JenkinsGHSA-4jhm-5f7g-75fp

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Fixing This On Your OS

Frequently Asked Questions

Is GHSA-4jhm-5f7g-75fp in your dependencies?