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VulnerabilityPublished Updated

CVE-2026-33953: Kovah LinkAce · Server-Side Request Forgery (SSRF)

Affects Kovah LinkAceSource CVE Database V5

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Not known to be exploited · CVSS 8.5 High : upgrade to 2.5.3 soon.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
8.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.5.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade LinkAce and kovah/LinkAce to 2.5.3.

Affected software

ProductAffectedFixed in
KovahLinkAceAffected
  • <2.5.3
Fixed in
  • 2.5.3
GitHubkovah/LinkAcepkg:github/kovah/LinkAceOther threatsAffected
  • <2.5.3
Fixed in
  • 2.5.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade LinkAce to version 2.5.3 or later, where this SSRF vulnerability is patched. No other mitigations are indicated by the vendor advisory. Since this is a self-hosted product, administrators must apply the update to remediate the issue.

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.

References

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