CVE-2026-73623: gitpython_project gitpython OS Command Injection
Vulnerability summary
CVE-2026-73623 is a high (CVSS 8.8) OS Command Injection vulnerability in gitpython_project gitpython. EPSS estimates a 0.83% chance of exploitation in the next 30 days, higher than 56.9% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 6 · Related 3Timeline
- 13-08-2026PublishedVulnerability first disclosed.
- 08-10-2026Last modifiedVulnerability information updated.
Description
GitPython before 3.1.54 contains an incomplete denylist in unsafe_git_clone_options that omits --template, allowing attackers to achieve arbitrary command execution during clone operations. Attackers can supply --template pointing to a directory containing malicious post-checkout hooks that execute when git clones the repository.
CVSS metrics
8 scores · 5 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.7HighCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- NVDNIST7.7HighCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/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
- CVE.orgCNA7.5HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · PypiEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.83%
Chance of exploitation in the next 30 days
Percentile
57%
Versus all other CVEs
30-day change
-0.13 pp
From 0.96% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundGitpython
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- python-gitAll versions (No fix recorded) | < 3.1.61-1
Gitpython_project1 product
- gitpython< 3.1.54
Gitpython-developers1 product
- gitpython< 3.1.54
PyPI1 product
- gitpython< 3.1.54
Ubuntu1 product
- python-gitAll versions (No fix recorded)
5 vendors · 5 products
References
9 links- github.com/gitpython-developers/GitPython/security/advisories/GHSA-6p8h-3wgx-97gfVendor AdvisoryWEBEVIDENCEREPORTExploit
- www.vulncheck.com/advisories/gitpython-before-remote-code-execution-via-templateThird Party AdvisoryAdvisoryREPORT
