CVE-2026-73623

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-13. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
7.5
EG Score
7.5(high)
EG Risk
50(Track*)
EG Risk 50/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 15, 2026

Advisory Details (2)

Auto-updated Aug 13, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

GitPython before 3.1.54 Remote Code Execution via --template | Advisories | VulnCheck

https://www.vulncheck.com/advisories/gitpython-before-remote-code-execution-via-template
github Patch Available🟡 PoC Available

Incomplete unsafe_git_clone_options denylist omits --template enabling arbitrary command execution via clone hooks · Advisory · gitpython-developers/GitPython · GitHub

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-6p8h-3wgx-97gf

Vendor Advisories for CVE-2026-73623(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
gitpython0.1.7 ... 3.1.9 (106 versions)3.1.54—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 31× in last 7d / 36× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 15:51 UTCGHSA enrichment
  3. 2026-08-20 02:43 UTCEG score recompute
  4. 2026-08-20 02:42 UTCGHSA enrichment
  5. 2026-08-19 17:04 UTCEPSS rescore
  6. 2026-08-19 13:31 UTCGHSA enrichment
  7. 2026-08-19 00:23 UTCEG score recompute
  8. 2026-08-19 00:23 UTCGHSA enrichment
  9. 2026-08-18 13:49 UTCEPSS rescore
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 11:14 UTCGHSA enrichment
  12. 2026-08-17 22:03 UTCEG score recompute
  13. 2026-08-17 22:02 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 08:53 UTCGHSA enrichment
  16. 2026-08-16 19:45 UTCEG score recompute
  17. 2026-08-16 19:45 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 06:36 UTCEG score recompute
  21. 2026-08-16 06:36 UTCGHSA enrichment
  22. 2026-08-16 02:15 UTCEPSS rescore
  23. 2026-08-15 17:28 UTCGHSA enrichment
  24. 2026-08-15 04:20 UTCEG score recompute
  25. 2026-08-15 04:20 UTCGHSA enrichment
Show 11 more
  1. 2026-08-15 03:23 UTCEG score recompute
  2. 2026-08-15 03:23 UTCGHSA enrichment
  3. 2026-08-15 01:31 UTCEPSS rescore
  4. 2026-08-14 17:08 UTCEG score recompute
  5. 2026-08-14 17:08 UTCGHSA enrichment
  6. 2026-08-14 14:50 UTCGHSA enrichment
  7. 2026-08-14 01:42 UTCGHSA enrichment
  8. 2026-08-13 12:33 UTCEG score recompute
  9. 2026-08-13 12:33 UTCGHSA enrichment
  10. 2026-08-13 11:42 UTCEG score recompute
  11. 2026-08-13 11:41 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73623?
CVE-2026-73623 is a high vulnerability published on August 13, 2026. GitPython before 3.1.54 contains an incomplete denylist in unsafegitclone_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 was CVE-2026-73623 disclosed?
CVE-2026-73623 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on August 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73623 actively exploited?
CVE-2026-73623 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 49.9% of all scored CVEs.
What is the CVSS score of CVE-2026-73623?
CVE-2026-73623 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-73623?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73623, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-73623

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