What’s Vulnerable › Vulnerabilities

CVE-2025-54586: GitProxy is susceptible to a hidden commits injection attack

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-07-30 · updated 2026-06-17
• Weakness: CWE-200

Description

GitProxy is an application that stands between developers and a Git remote endpoint. In versions 1.19.1 and below, attackers can inject extra commits into the pack sent to GitHub, commits that aren’t pointed to by any branch. Although these “hidden” commits never show up in the repository’s visible history, GitHub still serves them at their direct commit URLs. This lets an attacker exfiltrate sensitive data without ever leaving a trace in the branch view. We rate this a High‑impact vulnerability because it completely compromises repository confidentiality. This is fixed in version 1.19.2.

Affected products

• finos Gitproxy: before 1.19.2 — fixed in 1.19.2

How to fix

Upgrade to a fixed version: finos Gitproxy 1.19.2. Check the vendor advisory for mitigations.

References

• https://github.com/finos/git-proxy/commit/9c1449f4ec37d2d1f3edf4328bc3757e8dba2110
• https://github.com/finos/git-proxy/commit/a620a2f33c39c78e01783a274580bf822af3cc3a
• https://github.com/finos/git-proxy/releases/tag/v1.19.2
• https://github.com/finos/git-proxy/security/advisories/GHSA-v98g-8rqx-g93g
• https://github.com/finos/git-proxy/security/advisories/GHSA-v98g-8rqx-g93g

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