CVE-2025-4949: jgit XXE — Exploit & Fix

Description

In Eclipse JGit versions 7.2.0.202503040940-r and older, the ManifestParser class used by the repo command and the AmazonS3 class used to implement the experimental amazons3 git transport protocol allowing to store git pack files in an Amazon S3 bucket, are vulnerable to XML External Entity (XXE) attacks when parsing XML files. This vulnerability can lead to information disclosure, denial of service, and other security issues.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-611 CWE-611

CWE-827 CWE-827

Affected Products

Vendor	Product	Versions
eclipse	jgit	< 5.13.4
eclipse	jgit	6.0.0 — 6.10.1.202505221210
eclipse	jgit	7.0.0 — 7.0.1.202505221510
eclipse	jgit	7.1.0 — 7.1.1.202505221757
eclipse	jgit	7.2.0 — 7.2.1.202505142326

References

Advisories & Patches

https://gitlab.eclipse.org/security/cve-assignement/-/issues/64

Exploits

https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/281 https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/281

Other References

https://projects.eclipse.org/projects/technology.jgit/releases/5.13.4 https://projects.eclipse.org/projects/technology.jgit/releases/6.10.1 https://projects.eclipse.org/projects/technology.jgit/releases/7.0.1 https://projects.eclipse.org/projects/technology.jgit/releases/7.1.1 https://projects.eclipse.org/projects/technology.jgit/releases/7.2.1

Frequently Asked Questions

What is CVE-2025-4949? +

In Eclipse JGit versions 7.2.0.202503040940-r and older, the ManifestParser class used by the repo command and the AmazonS3 class used to implement the experimental amazons3 git transport protocol allowing to store git pack files in an Amazon S3 bucket, are vulnerable to XML External Entity (XXE) attacks when parsing XML files. This vulnerability can lead to information disclosure, denial of service, and other security issues. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-4949? +

CVE-2025-4949 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-4949? +

CVE-2025-4949 affects products from eclipse, specifically: jgit. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-4949? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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