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VulnerabilityPublished Updated

CVE-2026-67324: Snakemake · GitPython unsafe clone option gate bypass through joined short options

Affects snakemakeSource GCVE Database

0
Authoritative record:CVE-2026-67324· Critical 9.3

Not known to be exploited · CVSS 9.3 Critical : upgrade to 9.23.1_1 as a priority.

Data as of 26 Oct 2026, 19:31 UTC

CVSS 4.0 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 9.23.1_1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 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 snakemake to 9.23.1_1.

Affected software

ProductAffectedFixed in
Homebrewsnakemakepkg:brew/snakemakeOther threatsAffected
  • >=9.20.0_1 <9.23.1_1
Fixed in
  • 9.23.1_1

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 Snakemake version 9.23.1_1 that fixes this issue by properly parsing and canonicalizing joined short options such as '-uVALUE' and '-cKEY=VALUE' before checking against the unsafe option set. Users should upgrade to version 9.23.1_1 or later to remediate this vulnerability. Until patched, relying solely on GitPython's default unsafe-option gate is insufficient to block these joined short-option bypasses.

Description

GitPython version 3.1.50 contains a vulnerability where the default unsafe-option gate intended to block dangerous git clone options can be bypassed using joined short-option forms such as '-u<helper>'. This allows execution of local commands via Git's upload-pack option despite the protection being enabled. The issue arises because the option canonicalization does not recognize joined short options as unsafe, leading to a residual security bypass.

References

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