CVE-2026-110628
HIGH
CVSS 8.6
Published: 2026-10-14
Modified: 2026-10-14
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Threat Intelligence Pending
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Description
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.
Quick Facts
| CVE ID | CVE-2026-110628 |
| CVSS Score | 8.6 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
| Published | 2026-10-14 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/kanbn/kan
- https://github.com/kanbn/kan/blob/v0.6.0/.env.example#L25-L2…
- https://github.com/kanbn/kan/blob/v0.6.0/apps/web/src/pages/…
- https://github.com/kanbn/kan/commit/53397d8e81dc1494d9413284…
- https://github.com/kanbn/kan/pull/590
- https://github.com/kanbn/kan/security/advisories/GHSA-qrx8-9…
- https://hackmd.io/@leediay/HyIxU63ofg
- https://www.vulncheck.com/advisories/kan-0.5.5-through-0.6.0…