Vulnerability · Published Jul 30, 2025 · Assigned by GitHub_M

CVE-2025-54584GitProxy is vulnerable to a packfile parsing exploit

High 7.0

In plain English

A high-severity security flaw in git-proxy from finos. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)7.0High

Exploit odds (30 days)0.6%top 52.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

GitProxy is an application that stands between developers and a Git remote endpoint (e.g., github.com). In versions 1.19.1 and below, an attacker can craft a malicious Git packfile to exploit the PACK signature detection in the parsePush.ts file. By embedding a misleading PACK signature within commit content and carefully constructing the packet structure, the attacker can trick the parser into treating invalid or unintended data as the packfile. Potentially, this would allow bypassing approval or hiding commits. This issue is fixed in version 1.19.2.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	@finos/git-proxy	1.19.2	GHSA-xxmh-rf63-qwjv

Affected products (as reported)

Vendor	Product	Versions
finos	git-proxy	< 1.19.2

Weakness: CWE-115 · Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N

References

https://github.com/finos/git-proxy/security/advisories/GHSA-xxmh-rf63-qwjv x_refsource_CONFIRM
https://github.com/finos/git-proxy/commit/333c98a165a5a1ec88414db3d4a2c6f81e083e0f x_refsource_MISC
https://github.com/finos/git-proxy/commit/a620a2f33c39c78e01783a274580bf822af3cc3a x_refsource_MISC
https://github.com/finos/git-proxy/releases/tag/v1.19.2 x_refsource_MISC