CVE-2026-111917

Vikunja 2.3.0 before 2.7.0 WebSocket Authentication Ignores Session Revocation

State: Published
Severity: 7.1 High
Published: Oct 17, 2026
Updated: Oct 19, 2026
Reserved: Oct 17, 2026

Description

Vikunja 2.3.0 before 2.7.0 contains an improper session validation vulnerability that allows attackers to keep WebSocket access after revocation because handleAuth never checks the JWT sid claim against the sessions table. Attackers holding a stolen access token can open or maintain connections to /api/v2/ws after session deletion or TOTP enrollment, continuing to receive the victim's notification.created pushes, including comment, task and project content.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	VulnCheck

Weaknesses

CWE-613 Insufficient Session Expiration

Affected Products

Product	Versions
vikunjago-vikunja	2.3.0 to before 2.7.0Affected 2.7.0Not affected

References

GitHub Security Advisory (GHSA-4hv6-xc92-j86g)vendor-advisory
VulnCheck Advisory: Vikunja 2.3.0 before 2.7.0 WebSocket Authentication Ignores Session Revocationthird-party-advisory

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