CVE-2026-78677

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-25. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%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 3.1.59 omits --separate-git-dir from unsafe_git_clone_options, allowing attackers to create arbitrary git directories outside the intended clone destination. Attackers can pass a separate_git_dir parameter to Repo.clone_from() or Repo.clone() to redirect repository metadata to an attacker-controlled filesystem path, enabling arbitrary directory creation and potential hook execution.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

August 25, 2026

Last Modified

September 2, 2026

Advisory Details (2)

Auto-updated Aug 25, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

GitPython before 3.1.59 Path Traversal via separate-git-dir | Advisories | VulnCheck

https://www.vulncheck.com/advisories/gitpython-before-path-traversal-via-separate-git-dir
github Patch Available🟡 PoC Available

clone_from()/clone() omit --separate-git-dir from unsafe_git_clone_options, enabling arbitrary git-directory creation outside the destination · Advisory · gitpython-developers/GitPython · GitHub

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-8mcc-hrx5-hvxc

Vendor Advisories for CVE-2026-78677(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
python-git3.1.30-1 ... 3.1.61-1 (11 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
python-git3.1.44-1, 3.1.45-1, 3.1.46-1, 3.1.50-1, 3.1.61-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
python-git3.1.44-1, 3.1.45-1, 3.1.46-1, 3.1.50-13.1.61-1—
PyPI(1)
PackageVulnerable rangeFixed inDependents
gitpython0.1.7 ... 3.1.9 (111 versions)3.1.59—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 78× 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. 2026-09-18 23:00 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-17 21:10 UTCEG score recompute
  4. 2026-09-16 14:40 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-15 12:48 UTCEG score recompute
  8. 2026-09-15 03:12 UTCEPSS rescore
  9. 2026-09-15 03:12 UTCEPSS rescore
  10. 2026-09-13 22:02 UTCEG score recompute
  11. 2026-09-12 20:12 UTCEG score recompute
  12. 2026-09-11 18:22 UTCEG score recompute
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-10 16:30 UTCEG score recompute
  16. 2026-09-09 01:19 UTCEG score recompute
  17. 2026-09-08 22:01 UTCEPSS rescore
  18. 2026-09-08 05:19 UTCGHSA enrichment
  19. 2026-09-07 16:20 UTCEG score recompute
  20. 2026-09-07 16:20 UTCGHSA enrichment
  21. 2026-09-07 03:24 UTCGHSA enrichment
  22. 2026-09-06 14:27 UTCEG score recompute
  23. 2026-09-06 14:27 UTCGHSA enrichment
  24. 2026-09-06 13:48 UTCEPSS rescore
  25. 2026-09-06 01:32 UTCEG score recompute
Show 53 more
  1. 2026-09-06 01:32 UTCGHSA enrichment
  2. 2026-09-05 12:37 UTCGHSA enrichment
  3. 2026-09-04 23:42 UTCEG score recompute
  4. 2026-09-04 23:42 UTCGHSA enrichment
  5. 2026-09-04 10:26 UTCEG score recompute
  6. 2026-09-04 10:26 UTCGHSA enrichment
  7. 2026-09-04 05:07 UTCEPSS rescore
  8. 2026-09-03 21:30 UTCGHSA enrichment
  9. 2026-09-03 08:29 UTCGHSA enrichment
  10. 2026-09-02 19:33 UTCEG score recompute
  11. 2026-09-02 19:33 UTCGHSA enrichment
  12. 2026-09-02 14:12 UTCEPSS rescore
  13. 2026-09-02 11:37 UTCGHSA enrichment
  14. 2026-09-01 22:35 UTCEG score recompute
  15. 2026-09-01 22:35 UTCGHSA enrichment
  16. 2026-09-01 13:54 UTCEPSS rescore
  17. 2026-09-01 09:40 UTCEG score recompute
  18. 2026-09-01 09:40 UTCGHSA enrichment
  19. 2026-09-01 04:40 UTCEPSS rescore
  20. 2026-09-01 04:40 UTCEPSS rescore
  21. 2026-08-31 20:41 UTCGHSA enrichment
  22. 2026-08-31 17:41 UTCGHSA enrichment
  23. 2026-08-31 04:01 UTCEG score recompute
  24. 2026-08-31 04:01 UTCGHSA enrichment
  25. 2026-08-30 19:18 UTCEPSS rescore
  26. 2026-08-30 19:17 UTCEPSS rescore
  27. 2026-08-30 15:05 UTCGHSA enrichment
  28. 2026-08-30 02:09 UTCEG score recompute
  29. 2026-08-30 02:09 UTCGHSA enrichment
  30. 2026-08-30 01:22 UTCEPSS rescore
  31. 2026-08-29 13:14 UTCGHSA enrichment
  32. 2026-08-29 00:18 UTCEG score recompute
  33. 2026-08-29 00:18 UTCGHSA enrichment
  34. 2026-08-28 21:42 UTCEPSS rescore
  35. 2026-08-28 09:08 UTCGHSA enrichment
  36. 2026-08-27 20:13 UTCEG score recompute
  37. 2026-08-27 20:12 UTCGHSA enrichment
  38. 2026-08-27 14:25 UTCEPSS rescore
  39. 2026-08-27 07:13 UTCGHSA enrichment
  40. 2026-08-26 18:18 UTCEG score recompute
  41. 2026-08-26 18:17 UTCGHSA enrichment
  42. 2026-08-26 14:47 UTCEPSS rescore
  43. 2026-08-26 05:21 UTCGHSA enrichment
  44. 2026-08-25 16:24 UTCEG score recompute
  45. 2026-08-25 16:24 UTCGHSA enrichment
  46. 2026-08-25 15:30 UTCEG score recompute
  47. 2026-08-25 15:30 UTCGHSA enrichment
  48. 2026-08-25 15:16 UTCEG score recompute
  49. 2026-08-25 15:16 UTCGHSA enrichment
  50. 2026-08-25 13:49 UTCEPSS rescore
  51. 2026-08-25 02:19 UTCEG score recompute
  52. 2026-08-25 01:50 UTCEG score recompute
  53. 2026-08-25 01:50 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-78677?
CVE-2026-78677 is a high vulnerability published on August 25, 2026. GitPython before 3.1.59 omits --separate-git-dir from unsafegitcloneoptions, allowing attackers to create arbitrary git directories outside the intended clone destination. Attackers can pass a separategitdir parameter to Repo.clonefrom() or Repo.clone() to redirect repository metadata to an…
When was CVE-2026-78677 disclosed?
CVE-2026-78677 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78677 actively exploited?
CVE-2026-78677 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 63.2% of all scored CVEs.
What is the CVSS score of CVE-2026-78677?
CVE-2026-78677 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-78677?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78677, 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-2026-78677

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