CVE-2026-33953

LinkAce's SSRF protection can be bypassed via internal hostname resolution in LinkAce

State: Published
Severity: 8.5 High
Published: Mar 27, 2026
Updated: Mar 30, 2026
Reserved: Mar 24, 2026

Description

LinkAce is a self-hosted archive to collect website links. Versions prior to 2.5.3 block direct requests to private IP literals, but still performs server-side requests to internal-only resources when those resources are referenced through an internal hostname. This allows an authenticated user to trigger server-side requests to internal services reachable by the LinkAce server but not directly reachable by an external user. Version 2.5.3 patches the issue.

Scores

CVSS	Score	Vector	Source
3.1	8.5 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N	GitHub_M

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
LinkAceKovah	< 2.5.3Affected

References

https://github.com/Kovah/LinkAce/security/advisories/GHSA-wp4g-qw9j-wfjg

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.