GHSA-M4F3-G4CQ-HQRX

Advisory lineage Upstream: 0 Downstream: 1
Downstream
Published: 01 Aug 2026, 15:30
Last modified:08 Sept 2026, 15:46

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.7 HIGH
4.0 (osv_pypi)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 Aug 2026, 15:30
Published
Vulnerability first disclosed
08 Sept 2026, 15:46
Last Modified
Vulnerability information updated

Description

Duplicate Advisory: GitPython: Environment-variable exfiltration via os.path.expandvars() on Repo.clone_from() URL ## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-rwj8-pgh3-r573. This link is maintained to preserve external references. ## Original Description GitPython before 3.1.52 is vulnerable to environment-variable exfiltration in Repo.clone_from(). The caller-supplied remote URL is passed through Git.polish_url(), which on non-Cygwin platforms calls os.path.expandvars() on the URL before invoking git clone. An attacker who controls the clone URL can embed $NAME or ${NAME} tokens that are expanded to the values of the hosting process's environment variables (e.g., AWS_SECRET_ACCESS_KEY or GITHUB_TOKEN). The resulting URL, now containing the secret, is transmitted over the network to an attacker-controlled host during the clone attempt, disclosing the secret.

CVSS Metrics

  • v4.0HIGHScore: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  • v3.1HIGHScore: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Systems

  • PyPIgitpython

    ≤ 3.1.51

References (3)