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VulnerabilityPublished Updated

CVE-2026-67179: genkit · Improper Neutralization of HTTP Headers for Scripting Syntax

Affects genkitSource CVE Database V5

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Not known to be exploited · CVSS 7.8 High : upgrade to 2026-06-18 soon.

Data as of 9 Nov 2026, 23:24 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2026-06-18
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 9 Nov 2026.

What to do

Upgrade genkit to 2026-06-18.

Affected software

ProductAffectedFixed in
genkit-aigenkitAffected
  • <2026-06-18
Fixed in
  • 2026-06-18

AI-suggested

The vulnerability was fixed on 2026-06-18. Although no explicit patch link is provided, users should update to the fixed version released after this date. Since this is not a cloud service, remediation requires applying the vendor's fix. Check the vendor advisory for the exact fixed version and update instructions.

Description

Genkit does not properly validate host request headers. Any host on the developer's network, and any website the developer visits (via DNS rebinding), can reach POST /api/runAction on the Dev UI server (default port 4000) and execute any registered Genkit action and read the result. Fixed on 2026-06-18.

References

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