CVE-2026-78678

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-25. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: Elevated riskExposed: 0

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

GitPython versions before 3.1.59 contain an incomplete denylist in the unsafe_git_revision_options guard that omits --contents and -S options, allowing attackers to read arbitrary files by passing these options to Repo.blame(). Attackers can supply revision values like --contents=/etc/passwd to leak file contents through the blame result returned to the caller.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 25, 2026

Advisory Details (2)

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

GitPython before 3.1.59 Arbitrary File Read via Repo.blame() | Advisories | VulnCheck

https://www.vulncheck.com/advisories/gitpython-before-arbitrary-file-read-via-repo-blame
github Patch Available🟡 PoC Available

Incomplete unsafe_git_revision_options denylist omits --contents/-S, enabling arbitrary file read via Repo.blame() · Advisory · gitpython-developers/GitPython · GitHub

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-5xxx-qhh7-9287

Vendor Advisories for CVE-2026-78678(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 18× in last 7d / 18× 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 01:35 UTCGHSA enrichment
  2. 2026-08-29 00:18 UTCEG score recompute
  3. 2026-08-29 00:18 UTCGHSA enrichment
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-27 19:06 UTCEG score recompute
  6. 2026-08-27 19:06 UTCGHSA enrichment
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-26 17:46 UTCEG score recompute
  9. 2026-08-26 17:46 UTCGHSA enrichment
  10. 2026-08-26 14:47 UTCEPSS rescore
  11. 2026-08-25 16:24 UTCEG score recompute
  12. 2026-08-25 16:24 UTCGHSA enrichment
  13. 2026-08-25 15:30 UTCEG score recompute
  14. 2026-08-25 15:30 UTCGHSA enrichment
  15. 2026-08-25 13:49 UTCEPSS rescore
  16. 2026-08-25 02:19 UTCEG score recompute
  17. 2026-08-25 01:50 UTCEG score recompute
  18. 2026-08-25 01:50 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78678?
CVE-2026-78678 is a medium vulnerability published on August 25, 2026. GitPython versions before 3.1.59 contain an incomplete denylist in the unsafegitrevision_options guard that omits --contents and -S options, allowing attackers to read arbitrary files by passing these options to Repo.blame(). Attackers can supply revision values like --contents=/etc/passwd to leak…
When was CVE-2026-78678 disclosed?
CVE-2026-78678 was first published in the National Vulnerability Database on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78678 actively exploited?
CVE-2026-78678 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 86.7% of all scored CVEs.
What is the CVSS score of CVE-2026-78678?
CVE-2026-78678 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-78678?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78678, 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

Explore the affected products and dependency analysis for CVE-2026-78678

Explore →

Is Your Infrastructure Affected by CVE-2026-78678?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs