CVE-2026-76221

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-19. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

GitPython before 3.1.58 contains a config-name injection vulnerability in the option-name validator that allows attackers to forge arbitrary git-config directives by injecting equals signs, hash symbols, and whitespace into option names. Attackers can inject malicious option names like 'sshCommand = touch /tmp/RCE #' to execute arbitrary commands via core.sshCommand or core.hooksPath on the next git operation.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.8%
EPSS %ILE
54th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 19, 2026

Last Modified

September 2, 2026

Advisory Details (2)

Auto-updated Aug 19, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

GitPython before 3.1.58 Config Injection via option-name | Advisories | VulnCheck

https://www.vulncheck.com/advisories/gitpython-before-config-injection-via-option-name
github Patch Available🟡 PoC Available

git-config OPTION-name injection via =/#/whitespace bypasses name validator, enabling forged core.sshCommand/hooksPath (RCE) · Advisory · gitpython-developers/GitPython · GitHub

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-jm78-9fvv-mhgr

Vendor Advisories for CVE-2026-76221(9)

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

Patch Availability(8)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatansible-automation-platform-26/controller-rhel9:17896737392026-09-23redhat
redhatansible-automation-platform-27/controller-rhel9:17895806842026-09-23redhat
redhatansible-automation-platform-25/controller-rhel8:17896070212026-09-23redhat
redhatsatellite/iop-vulnerability-engine-rhel9:17896076052026-09-17redhat
redhatsatellite/iop-vmaas-rhel9:17896119982026-09-17redhat
redhatsatellite/iop-vmaas-rhel9:17896118582026-09-17redhat
redhatsatellite/iop-vulnerability-engine-rhel9:17896370822026-09-17redhat
redhatpython3.12-gitpython-0:3.1.59-1.el9pc2026-09-03redhat

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 rangeFix by version rangeDependents
python-git3.1.30-1 ... 3.1.62-2 (13 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
python-git3.1.44-1 ... 3.1.62-2 (7 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
python-git3.1.44-1, 3.1.45-1, 3.1.46-1, 3.1.50-1
  • every version up to 3.1.61-1: fixed in 3.1.61-1
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
gitpython0.1.7 ... 3.1.9 (110 versions)
  • every version up to 3.1.58: fixed in 3.1.58
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 32× in last 7d / 151× 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 229 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-76221?
CVE-2026-76221 is a high vulnerability published on August 19, 2026. GitPython before 3.1.58 contains a config-name injection vulnerability in the option-name validator that allows attackers to forge arbitrary git-config directives by injecting equals signs, hash symbols, and whitespace into option names. Attackers can inject malicious option names like 'sshCommand…
When was CVE-2026-76221 disclosed?
CVE-2026-76221 was first published on August 19, 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-2026-76221 actively exploited?
CVE-2026-76221 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (54th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-76221?
CVE-2026-76221 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-76221?
A fix for CVE-2026-76221 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-76221 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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