What is CVE-2026-40905?

CVE-2026-40905 is a high-severity vulnerability in Kovah Linkace, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 8.1/10. Published 2026-04-21.

How severe is CVE-2026-40905?

High severity. CVSS v3 base score is 8.1 out of 10.

Open Redirect in Kovah Linkace

CVE-2026-40905

LinkAce is a self-hosted archive to collect website links. Prior to 2.5.4, a password reset poisoning vulnerability was identified in the application due to improper trust of user-controlled HTTP headers. The application uses the X-Forward…

Vulnerability class: Open Redirect

EPSS: 0.000 (10.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

Affected products

Kovah Linkace — versions < 2.5.4

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

https://github.com/Kovah/LinkAce/security/advisories/GHSA-48wv-jpf4-vjfv (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-40905?: CVE-2026-40905 is a high-severity vulnerability in Kovah Linkace, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 8.1/10. Published 2026-04-21.
How severe is CVE-2026-40905?: High severity. CVSS v3 base score is 8.1 out of 10.