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TI-2025-34356 Aliases CVE-2025-54584GHSA-xxmh-rf63-qwjv

GitProxy is vulnerable to a packfile parsing exploit

Priority MEDIUM 64CWE-115Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00571 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed git-proxy (finos): 1.19.2@finos/git-proxy (npm): 1.19.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
finosgit-proxybefore 1.19.21.19.2Patch availableCNA
—@finos/git-proxy (npm)before 1.19.21.19.2Patch availableGHSA-xxmh-rf63-qwjv
  • git-proxy Vendorfinos Affected before 1.19.2 Fixed in 1.19.2 Patch available CNA
  • @finos/git-proxy (npm) Vendor— Affected before 1.19.2 Fixed in 1.19.2 Patch available GHSA-xxmh-rf63-qwjv

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:finos:gitproxy:*:*:*:*:*:*:*:*before 1.19.2Vulnerablefinos
  • cpe:2.3:a:finos:gitproxy:*:*:*:*:*:*:*:* Versions before 1.19.2 Vulnerable ·finos

Remediation

  • Fix · CNA git-proxy (finos) Fixed in 1.19.2
  • Fix · GHSA-xxmh-rf63-qwjv @finos/git-proxy (npm) Fixed in 1.19.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-54584
  2. 2026-10-03 Alias added: GHSA-xxmh-rf63-qwjv

References

Exploit 1

Patch 3

Advisory 1

Other 1

  • TI-2025-34357 GitProxy is vulnerable to a new branch approval exploit CVSS 4.0HIGH 8.2
  • TI-2025-34355 GitProxy bypasses approvals when pushing multiple branches CVSS 4.0HIGH 8.3
  • TI-2025-34358 GitProxy is susceptible to a hidden commits injection attack CVSS 3.1HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences