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CVE-2026-76222VulnerabilityPublished Updated

shallow-backup · GitPython: Arbitrary Git Repository Creation Outside the Working Tree via Unvalidated .gitmodules Submodule Name in

Affects shallow-backupSource GCVE Database

0
Authoritative record:CVE-2026-76222· High 8.4

Not known to be exploited · CVSS 8.4 High : upgrade to 6.6_6 soon.

Data as of 26 Oct 2026, 17:58 UTC

CVSS 4.0 base score
8.4High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 6.6_6
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 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 shallow-backup to 6.6_6.

Affected software

ProductAffectedFixed in
Homebrewshallow-backuppkg:brew/shallow-backupOther threatsAffected
  • >=5.0.1 <6.6_6
Fixed in
  • 6.6_6

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

AI-suggested

A patch is available in GitPython version 6.6_6 that addresses this vulnerability. Users should upgrade to version 6.6_6 or later to remediate this issue. Until upgraded, avoid cloning and initializing submodules from untrusted repositories using GitPython. No other mitigations are specified.

Description

GitPython versions prior to 6.6_6 contain a vulnerability where submodule names from a cloned repository's .gitmodules file are not validated. This allows an attacker controlling the repository to specify a submodule name with directory traversal sequences, causing GitPython to create and initialize a full Git repository outside the intended working directory when submodules are initialized.

References

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