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

High 7.0 Published Updated

An attacker can bypass approval workflows or hide commits by crafting a malicious Git packfile that exploits signature detection flaws in GitProxy.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-54584?

CVE-2025-54584 is a high-severity vulnerability in finos git-proxy, published on 30 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.

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.

Weakness: CWE-115

Which versions are affected by CVE-2025-54584?

2 open source packages ship an affected version, including @finos/git-proxy. It affects 1 product.

PackageAffectedFixed in
@finos/git-proxy npmAll versions1.19.2
@finos/git-proxy npmAll versions1.19.2

Products include Finos Gitproxy.

How do I fix CVE-2025-54584?

Upgrade @finos/git-proxy to 1.19.2 or later.

Is CVE-2025-54584 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-54584 exists.

Sources

Also known as GHSA-xxmh-rf63-qwjv.

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