Auth bypass in Andrii-Kryvoviaz Slink
CVE-2026-85605
Slink before 1.12.3 fails to properly authorize access to image comment endpoints, allowing unauthenticated attackers to read comment threads via GET /api/image/{imageId}/comments and server-sent-events subscriptions. Attackers who obtain image IDs out of band can retrieve full comment threads on public images and subscribe to live comment updates without authentication or authorization checks.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (44.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.002
Affected products
Weakness classification (CWE)
References
- github.com/andrii-kryvoviaz/slink (product)
- github.com/andrii-kryvoviaz/slink/commit/221315b1ac51 (patch)
- github.com/andrii-kryvoviaz/slink/commit/fe04a7dffe8a7ed2f834f7364281a9414e3946… (patch)
- github.com/andrii-kryvoviaz/slink/releases/tag/v1.12.3 (release-notes)
- github.com/andrii-kryvoviaz/slink/security/advisories/GHSA-hxx4-4hwq-8258 (vendor-advisory)
- www.vulncheck.com/advisories/slink-before-1.12.3-missing-authorization-on-image… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-85605?
- CVE-2026-85605 is a medium-severity vulnerability in Andrii-Kryvoviaz Slink, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-09-04.
- How severe is CVE-2026-85605?
- Medium severity. CVSS v3 base score is 5.3 out of 10.