CVE-2026-123521

MediumCVSS 5.9/10Last modified Nov 10, 2026

Description

Vikunja before 2.7.1 contains an improper restriction of excessive authentication attempts vulnerability that allows session holders to brute-force account passwords via unthrottled re-authentication endpoints. Attackers with a stolen session can guess the password via /user/settings/totp/disable without lockout, then disable TOTP without a code for persistent account takeover.

Metrics

CVSS 3.1 5.9/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N

Weakness enumeration

CWE-307

Affected software

VendorProductVersions
go-vikunjavikunja< 2.7.1

References

Timeline

Published
Nov 8, 2026
Last modified
Nov 10, 2026
NVD status
Deferred

Related CVEs from 2026

CVE-2026-1235227.1Vikunja before 2.7.1 contains an authorization bypass vulnerability that allows authenticated users to read any task by injecting a crafted CVE-2026-1235236.5Vikunja before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated users to exhaust server memory byCVE-2026-1235245.7Vikunja from 0.23.0 before 2.7.1 contains an information disclosure vulnerability that allows project collaborators with write access to reaCVE-2026-1235256.5Vikunja before 2.7.1 allocates memory without limits in its Trello, Todoist and Microsoft To Do migration importers, which buffer remote attCVE-2026-1235265.4Vikunja before 2.7.1 contains a mass assignment vulnerability that allows any authenticated user to set the read-only external_id field throCVE-2026-1235275.4Vikunja from 2.4.0 before 2.7.1 contains an authorization bypass vulnerability that allows token holders to perform unintended operations duCVE-2026-1235286.8Vikunja before 2.7.1 contains an insufficient session expiration vulnerability that allows holders of revoked access tokens to keep authentiCVE-2026-1235294.6Vikunja before 2.7.1 contains a stored CSS injection vulnerability that allows authenticated users with project write access to inject arbitCVE-2026-123535.3An unauthenticated attacker could trigger an Out of Memory condition to crash the Java process for RHCS by repeatedly sending HTTP requests CVE-2026-1235305.9Vikunja before 2.7.1 contains a missing authentication vulnerability that allows attackers holding a stolen session to enroll and enable TOTCVE-2026-1235318.8Vikunja from 1.0.0 before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated users to bypass servicCVE-2026-1235326.5gix-fs in gitoxide before 0.24.1 contains a credential disclosure vulnerability that allows remote attackers to capture NTLM credentials by
CVE-2026-123521: Medium severity, CVSS 5.9 | Vulnix