CVE-2026-35594 Vikunja Link Share JWT tokens remain valid for 72 hours after share deletion or permission downgrade

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, Vikunja's link share authentication GetLinkShareFromClaims in pkg/models/linksharing.go constructs authorization objects entirely from JWT claims without any server-side database validation. When a project owner delet...

CVE-2026-35594

CVE-2026-35594 affects Vikunja prior to version 2.3.0, where link-share JWTs were validated entirely from JWT claims without server-side checks. The GetLinkShareFromClaims path builds a LinkSharing object without database validation, allowing previously issued link-share JWTs to retain their orig...

CVE-2026-35594 Vikunja Link Share JWT tokens remain valid for 72 hours after share deletion or permission downgrade

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, Vikunja's link share authentication GetLinkShareFromClaims in pkg/models/linksharing.go constructs authorization objects entirely from JWT claims without any server-side database validation. When a project owner delet...

CVE-2026-34727

Vikunja

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization via improper authorization checks in the CanDoAPIRoute process. An attacker can delete project backgrounds by using an API token with only the projects.background permission, bypassing intended access controls fo...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization via improper authorization checks in the CanDoAPIRoute process. An attacker can delete project backgrounds by using an API token with only the projects.background permission, bypassing intended access controls fo...

Vikunja: Scoped API tokens with projects.background permission can delete project backgrounds

Summary Vikunja's scoped API token enforcement for custom project background routes is method-confused. A token with only projects.background can successfully delete a project background, while a token with only projects.backgrounddelete is rejected. This is a scoped-token authorization bypass...

GHSA-V479-VF79-MG83 Vikunja: Scoped API tokens with projects.background permission can delete project backgrounds

Summary Vikunja's scoped API token enforcement for custom project background routes is method-confused. A token with only projects.background can successfully delete a project background, while a token with only projects.backgrounddelete is rejected. This is a scoped-token authorization bypass...

Insufficient Session Expiration

Overview Affected versions of this package are vulnerable to Insufficient Session Expiration due to the lack of server-side validation in the GetLinkShareFromClaims process. An attacker can retain unauthorized access to resources by using previously issued JWT tokens even after a link share is...

Insufficient Session Expiration

Overview Affected versions of this package are vulnerable to Insufficient Session Expiration due to the lack of server-side validation in the GetLinkShareFromClaims process. An attacker can retain unauthorized access to resources by using previously issued JWT tokens even after a link share is...

Insufficient Session Expiration

Overview Affected versions of this package are vulnerable to Insufficient Session Expiration due to the lack of server-side validation in the GetLinkShareFromClaims process. An attacker can retain unauthorized access to resources by using previously issued JWT tokens even after a link share is...

Vikunja: Link Share JWT tokens remain valid for 72 hours after share deletion or permission downgrade

Title Link Share JWT tokens remain valid for 72 hours after share deletion or permission downgrade Description Vikunja's link share authentication constructs authorization objects entirely from JWT claims without any server-side database validation. When a project owner deletes a link share or...

Vikunja has TOTP Two-Factor Authentication Bypass via OIDC Login Path

Summary The OIDC callback handler issues a full JWT token without checking whether the matched user has TOTP two-factor authentication enabled. When a local user with TOTP enrolled is matched via the OIDC email fallback mechanism, the second factor is completely skipped. Details The OIDC callback...

GHSA-8JVC-MCX6-R4CG Vikunja has TOTP Two-Factor Authentication Bypass via OIDC Login Path

Summary The OIDC callback handler issues a full JWT token without checking whether the matched user has TOTP two-factor authentication enabled. When a local user with TOTP enrolled is matched via the OIDC email fallback mechanism, the second factor is completely skipped. Details The OIDC callback...

CVE-2026-5774

Improper synchronization of the userTokens map in the API server in Canonical Juju 4.0.5, 3.6.20, and 2.9.56 may allow an authenticated user to possibly cause a denial of service on the server or possibly reuse a single-use discharge token...

CVE-2026-5774

Improper synchronization of the userTokens map in the API server in Canonical Juju 4.0.5, 3.6.20, and 2.9.56 may allow an authenticated user to possibly cause a denial of service on the server or possibly reuse a single-use discharge token...

CVE-2026-5774 Juju API Server Denial of Service and Authentication Replay via Unsynchronized Token Map

Improper synchronization of the userTokens map in the API server in Canonical Juju 4.0.5, 3.6.20, and 2.9.56 may allow an authenticated user to possibly cause a denial of service on the server or possibly reuse a single-use discharge token...

CVE-2026-5774 Juju API Server Denial of Service and Authentication Replay via Unsynchronized Token Map

Improper synchronization of the userTokens map in the API server in Canonical Juju 4.0.5, 3.6.20, and 2.9.56 may allow an authenticated user to possibly cause a denial of service on the server or possibly reuse a single-use discharge token...

CVE-2026-5774 Juju API Server Denial of Service and Authentication Replay via Unsynchronized Token Map

Improper synchronization of the userTokens map in the API server in Canonical Juju 4.0.5, 3.6.20, and 2.9.56 may allow an authenticated user to possibly cause a denial of service on the server or possibly reuse a single-use discharge token...

SUSE-SU-2026:1244-1 Security update for the Linux Kernel (Live Patch 4 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.53.16 fixes various security issues The following security issues were fixed: - CVE-2025-39973: i40e: add validation for ringlen param bsc1252036. - CVE-2025-40018: ipvs: Defer ipvsftp unregister during netns cleanup bsc1252689. -...