PT-2026-28577 · Linkace · Linkace

Amemoyoi · Published 2026-03-27 · Updated 2026-03-28 · CVE-2026-33953

Positive Technologies (AI Summary)

CVSS v3.1

8.5

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Name of the Vulnerable Software and Affected Versions LinkAce versions prior to 2.5.3

Description LinkAce is a self-hosted archive for collecting website links. Versions before 2.5.3 prevent direct requests to private IP literals, but continue to make server-side requests to internal resources when referenced via an internal hostname. This allows an authenticated user to initiate server-side requests to internal services accessible by the LinkAce server, but not directly accessible from outside the network. The issue involves server-side request forgery, where an attacker can leverage the server to access internal resources.

Recommendations Update to version 2.5.3 or later.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2026-33953

GHSA-WP4G-QW9J-WFJG

Affected Products

Linkace

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33953.json · Exploit
• https://github.com/Kovah/LinkAce/security/advisories/GHSA-wp4g-qw9j-wfjg · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-33953 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33953 · Security Note
• https://twitter.com/CVEnew/status/2037719362426323438 · Twitter Post
• https://twitter.com/TheHackerWire/status/2037666022048796735 · Twitter Post
• https://twitter.com/CveFindCom/status/2037661747440398755 · Twitter Post