CVE-2026-44511 — HIGH (7.4)

Vulnerability Description

Katalyst Koi is a framework for building Rails admin functionality. Prior to 4.20.0 and 5.6.0, admin session cookies were not invalidated when an admin user logged out. An attacker with access to a valid admin session cookie could continue to access admin functionality after logout, until the cookie expired or session secrets were rotated. This vulnerability is fixed in 4.20.0 and 5.6.0.

CVSS Score

7.4

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Related Weaknesses (CWE)

CWE-613

References

https://github.com/katalyst/koi/security/advisories/GHSA-4cx3-3c38-j9vv

FAQ

What is CVE-2026-44511?

CVE-2026-44511 is a vulnerability with a CVSS score of 7.4 (HIGH). Katalyst Koi is a framework for building Rails admin functionality. Prior to 4.20.0 and 5.6.0, admin session cookies were not invalidated when an admin user logged out. An attacker with access to a va...

How severe is CVE-2026-44511?

CVE-2026-44511 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-44511?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.