Skip to main content
CVE-2026-73620VulnerabilityPublished Updated

IndexFile.checkout() · GitPython: Unguarded git option forwarding

Affects nbdimeSource GCVE Database

0
Authoritative record:CVE-2026-73620· High 7.2

Not known to be exploited · CVSS 7.2 High : upgrade to 4.0.4_6 soon.

Data as of 26 Oct 2026, 17:29 UTC

CVSS 4.0 base score
7.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.0.4_6
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade nbdime to 4.0.4_6.

Affected software

ProductAffectedFixed in
Homebrewnbdimepkg:brew/nbdimeOther threatsAffected
  • >=1.1.0 <4.0.4_6
Fixed in
  • 4.0.4_6

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in GitPython version 4.0.4_6. Users should upgrade to this version or later to remediate these vulnerabilities. Until upgraded, avoid passing untrusted or user-controlled options via **kwargs to IndexFile.checkout() and TagReference.create().

Description

GitPython versions before 4.0.4_6 contain unguarded forwarding of git command options in the IndexFile.checkout() and TagReference.create() methods. This allows an attacker with repository write access to cause arbitrary file overwrites outside the repository via the --prefix option in checkout-index, or to read arbitrary files on the system via the -F/--file option in git tag. Both issues arise because these methods forward **kwargs directly to git commands without proper safety checks. A fix is available in version 4.0.4_6.

References

Community reviews

Loading reviews…