CRITICAL 9.2 NVD
CVE-2026-110628
Kan 0.5.5 through 0.6.0 contains an unauthenticated server-side request forgery vulnerability in the /api/download/attatchment route due to an incomplete fix fo
Kan 0.5.5 through 0.6.0 contains an unauthenticated server-side request forgery vulnerability in the /api/download/attatchment route due to an incomplete fix for CVE-2026-32255. When S3_ENDPOINT is unset, attackers can pass arbitrary url query parameters to fetch() to read internal services, localhost ports, and cloud instance metadata.
References
- https://github.com/kanbn/kan
- https://github.com/kanbn/kan/blob/v0.6.0/.env.example#L25-L27
- https://github.com/kanbn/kan/blob/v0.6.0/apps/web/src/pages/api/download/attatchment.ts#L2
- https://github.com/kanbn/kan/commit/53397d8e81dc1494d94132848c1f0416f1152bd7
- https://github.com/kanbn/kan/pull/590
This critical severity vulnerability with a CVSS score of 9.2 was published on 2026-10-14 via NVD.
Risk Timeline
CVE Disclosed2026-10-14 · -1 days ago
Remediation Resources
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