CVE-2026-78676

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-25. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

GitPython before 3.1.59 fails to safely re-serialize multi-line git-config values during write operations, corrupting dormant quoted values into injected directives like core.hooksPath. Attackers can craft config files with embedded newlines that become live git directives after any unrelated GitPython config write, enabling arbitrary code execution via hook invocation.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 26, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

GitPython before 3.1.59 Remote Code Execution via Config Injection | Advisories | VulnCheck

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

Dormant multi-line git-config values are corrupted into live injected directives (e.g. core.hooksPath) on any unrelated GitConfigParser write, enabling RCE · Advisory · gitpython-developers/GitPython · GitHub

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-284h-m62q-gf8w

Vendor Advisories for CVE-2026-78676(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 47× in last 7d / 47× 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. 2026-08-30 05:50 UTCGHSA enrichment
  2. 2026-08-30 01:44 UTCEG score recompute
  3. 2026-08-30 01:44 UTCGHSA enrichment
  4. 2026-08-30 01:22 UTCEPSS rescore
  5. 2026-08-29 21:38 UTCGHSA enrichment
  6. 2026-08-29 17:33 UTCGHSA enrichment
  7. 2026-08-29 12:44 UTCGHSA enrichment
  8. 2026-08-29 08:37 UTCGHSA enrichment
  9. 2026-08-29 04:31 UTCGHSA enrichment
  10. 2026-08-29 00:19 UTCEG score recompute
  11. 2026-08-29 00:18 UTCGHSA enrichment
  12. 2026-08-28 21:42 UTCEPSS rescore
  13. 2026-08-28 19:25 UTCGHSA enrichment
  14. 2026-08-28 14:54 UTCGHSA enrichment
  15. 2026-08-28 10:40 UTCGHSA enrichment
  16. 2026-08-28 06:33 UTCGHSA enrichment
  17. 2026-08-28 02:23 UTCGHSA enrichment
  18. 2026-08-27 22:17 UTCGHSA enrichment
  19. 2026-08-27 18:11 UTCEG score recompute
  20. 2026-08-27 18:11 UTCGHSA enrichment
  21. 2026-08-27 14:25 UTCEPSS rescore
  22. 2026-08-27 13:53 UTCGHSA enrichment
  23. 2026-08-27 09:47 UTCGHSA enrichment
  24. 2026-08-27 05:40 UTCGHSA enrichment
  25. 2026-08-27 01:34 UTCGHSA enrichment
Show 22 more
  1. 2026-08-26 21:28 UTCGHSA enrichment
  2. 2026-08-26 17:23 UTCEG score recompute
  3. 2026-08-26 17:23 UTCGHSA enrichment
  4. 2026-08-26 16:23 UTCEG score recompute
  5. 2026-08-26 16:23 UTCGHSA enrichment
  6. 2026-08-26 15:11 UTCEG score recompute
  7. 2026-08-26 15:11 UTCGHSA enrichment
  8. 2026-08-26 14:47 UTCEPSS rescore
  9. 2026-08-26 11:06 UTCGHSA enrichment
  10. 2026-08-26 06:59 UTCGHSA enrichment
  11. 2026-08-26 02:53 UTCGHSA enrichment
  12. 2026-08-25 22:48 UTCGHSA enrichment
  13. 2026-08-25 18:42 UTCGHSA enrichment
  14. 2026-08-25 14:37 UTCEG score recompute
  15. 2026-08-25 14:37 UTCGHSA enrichment
  16. 2026-08-25 13:49 UTCEPSS rescore
  17. 2026-08-25 10:32 UTCGHSA enrichment
  18. 2026-08-25 06:27 UTCEG score recompute
  19. 2026-08-25 06:26 UTCGHSA enrichment
  20. 2026-08-25 02:19 UTCEG score recompute
  21. 2026-08-25 01:50 UTCEG score recompute
  22. 2026-08-25 01:50 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-78676?
CVE-2026-78676 is a critical vulnerability published on August 25, 2026. GitPython before 3.1.59 fails to safely re-serialize multi-line git-config values during write operations, corrupting dormant quoted values into injected directives like core.hooksPath. Attackers can craft config files with embedded newlines that become live git directives after any unrelated…
When was CVE-2026-78676 disclosed?
CVE-2026-78676 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78676 actively exploited?
CVE-2026-78676 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 66.6% of all scored CVEs.
What is the CVSS score of CVE-2026-78676?
CVE-2026-78676 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-78676?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78676, 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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