CVE-2026-73620

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-13. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: Elevated riskExposed: 0

A fix is available — apply it.

GitPython before 3.1.57 fails to guard git option forwarding in IndexFile.checkout() and TagReference.create(), allowing attackers to pass unsafe options via kwargs. Attackers can use --prefix to overwrite arbitrary files with repository content or -F to read arbitrary files returned in-band.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
52(Track*)
EG Risk 52/100SSVC: 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
Severity81% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

August 13, 2026

Last Modified

September 3, 2026

Advisory Details (2)

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

GitPython before 3.1.57 Arbitrary File Overwrite and Read | Advisories | VulnCheck

https://www.vulncheck.com/advisories/gitpython-before-arbitrary-file-overwrite-and-read
github Patch Available🟡 PoC Available

Unguarded git option forwarding in IndexFile.checkout() and TagReference.create() enables arbitrary file overwrite and arbitrary file read · Advisory · gitpython-developers/GitPython · GitHub

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-3f7w-8rr8-f37f

Vendor Advisories for CVE-2026-73620(4)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatpython3.12-aiohttp-0:3.14.3-1.el9pc2026-09-03redhat
redhatpython3.12-gitpython-0:3.1.59-1.el9ap2026-08-24redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

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 (109 versions)3.1.57—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 39× in last 7d / 152× 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.

Showing the most recent 100 of 188 total refreshes for this CVE.

  1. 2026-09-19 06:01 UTCEG score recompute
  2. 2026-09-19 06:01 UTCVendor advisory
  3. 2026-09-19 06:00 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 16:55 UTCVendor advisory
  6. 2026-09-18 16:55 UTCGHSA enrichment
  7. 2026-09-18 02:43 UTCEG score recompute
  8. 2026-09-18 02:43 UTCVendor advisory
  9. 2026-09-18 02:43 UTCGHSA enrichment
  10. 2026-09-17 13:40 UTCVendor advisory
  11. 2026-09-17 13:39 UTCGHSA enrichment
  12. 2026-09-17 00:12 UTCEG score recompute
  13. 2026-09-17 00:12 UTCVendor advisory
  14. 2026-09-17 00:12 UTCGHSA enrichment
  15. 2026-09-16 14:08 UTCEPSS rescore
  16. 2026-09-16 10:48 UTCEG score recompute
  17. 2026-09-16 10:48 UTCVendor advisory
  18. 2026-09-16 10:48 UTCGHSA enrichment
  19. 2026-09-16 05:15 UTCEPSS rescore
  20. 2026-09-15 20:11 UTCVendor advisory
  21. 2026-09-15 20:11 UTCGHSA enrichment
  22. 2026-09-15 06:22 UTCEG score recompute
  23. 2026-09-15 06:22 UTCVendor advisory
  24. 2026-09-15 06:22 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 75 more
  1. 2026-09-14 17:10 UTCVendor advisory
  2. 2026-09-14 17:10 UTCGHSA enrichment
  3. 2026-09-14 04:07 UTCEG score recompute
  4. 2026-09-14 04:07 UTCVendor advisory
  5. 2026-09-14 04:07 UTCGHSA enrichment
  6. 2026-09-13 15:04 UTCVendor advisory
  7. 2026-09-13 15:04 UTCGHSA enrichment
  8. 2026-09-13 02:02 UTCEG score recompute
  9. 2026-09-13 02:02 UTCVendor advisory
  10. 2026-09-13 02:02 UTCGHSA enrichment
  11. 2026-09-12 15:02 UTCEPSS rescore
  12. 2026-09-12 12:59 UTCEG score recompute
  13. 2026-09-12 12:59 UTCVendor advisory
  14. 2026-09-12 12:59 UTCGHSA enrichment
  15. 2026-09-11 23:56 UTCEG score recompute
  16. 2026-09-11 23:56 UTCVendor advisory
  17. 2026-09-11 23:56 UTCGHSA enrichment
  18. 2026-09-11 14:53 UTCEPSS rescore
  19. 2026-09-11 09:19 UTCVendor advisory
  20. 2026-09-11 09:19 UTCGHSA enrichment
  21. 2026-09-10 20:16 UTCEG score recompute
  22. 2026-09-10 20:16 UTCVendor advisory
  23. 2026-09-10 20:16 UTCGHSA enrichment
  24. 2026-09-10 09:35 UTCEPSS rescore
  25. 2026-09-10 07:13 UTCVendor advisory
  26. 2026-09-10 07:13 UTCGHSA enrichment
  27. 2026-09-09 18:10 UTCVendor advisory
  28. 2026-09-09 18:10 UTCGHSA enrichment
  29. 2026-09-09 05:07 UTCEG score recompute
  30. 2026-09-09 05:07 UTCVendor advisory
  31. 2026-09-09 05:07 UTCGHSA enrichment
  32. 2026-09-08 22:01 UTCEPSS rescore
  33. 2026-09-08 07:57 UTCVendor advisory
  34. 2026-09-08 07:57 UTCGHSA enrichment
  35. 2026-09-07 18:52 UTCEG score recompute
  36. 2026-09-07 18:52 UTCVendor advisory
  37. 2026-09-07 18:52 UTCGHSA enrichment
  38. 2026-09-07 05:48 UTCVendor advisory
  39. 2026-09-07 05:48 UTCGHSA enrichment
  40. 2026-09-06 16:00 UTCEG score recompute
  41. 2026-09-06 16:00 UTCVendor advisory
  42. 2026-09-06 16:00 UTCGHSA enrichment
  43. 2026-09-06 13:48 UTCEPSS rescore
  44. 2026-09-06 02:56 UTCEG score recompute
  45. 2026-09-06 02:56 UTCVendor advisory
  46. 2026-09-06 02:56 UTCGHSA enrichment
  47. 2026-09-05 13:53 UTCVendor advisory
  48. 2026-09-05 13:53 UTCGHSA enrichment
  49. 2026-09-05 00:37 UTCEG score recompute
  50. 2026-09-05 00:37 UTCVendor advisory
  51. 2026-09-05 00:37 UTCGHSA enrichment
  52. 2026-09-04 07:52 UTCEG score recompute
  53. 2026-09-04 07:52 UTCVendor advisory
  54. 2026-09-04 07:52 UTCGHSA enrichment
  55. 2026-09-04 05:07 UTCEPSS rescore
  56. 2026-09-03 16:18 UTCVendor advisory
  57. 2026-09-03 16:18 UTCGHSA enrichment
  58. 2026-09-03 12:40 UTCVendor advisory
  59. 2026-09-03 12:40 UTCGHSA enrichment
  60. 2026-09-02 23:20 UTCEG score recompute
  61. 2026-09-02 23:20 UTCVendor advisory
  62. 2026-09-02 23:20 UTCGHSA enrichment
  63. 2026-09-02 14:12 UTCEPSS rescore
  64. 2026-09-02 00:40 UTCEG score recompute
  65. 2026-09-02 00:40 UTCVendor advisory
  66. 2026-09-02 00:40 UTCGHSA enrichment
  67. 2026-09-01 13:54 UTCEPSS rescore
  68. 2026-09-01 11:35 UTCEG score recompute
  69. 2026-09-01 11:35 UTCVendor advisory
  70. 2026-09-01 11:35 UTCGHSA enrichment
  71. 2026-09-01 04:40 UTCEPSS rescore
  72. 2026-09-01 04:40 UTCEPSS rescore
  73. 2026-08-31 20:42 UTCEG score recompute
  74. 2026-08-31 20:42 UTCVendor advisory
  75. 2026-08-31 20:42 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-73620?
CVE-2026-73620 is a high vulnerability published on August 13, 2026. GitPython before 3.1.57 fails to guard git option forwarding in IndexFile.checkout() and TagReference.create(), allowing attackers to pass unsafe options via kwargs. Attackers can use --prefix to overwrite arbitrary files with repository content or -F to read arbitrary files returned in-band.
When was CVE-2026-73620 disclosed?
CVE-2026-73620 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73620 actively exploited?
CVE-2026-73620 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 70.5% of all scored CVEs.
What is the CVSS score of CVE-2026-73620?
CVE-2026-73620 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-73620?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73620, 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

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