CVE-2026-33679 Vikunja has SSRF via OpenID Connect Avatar Download that Bypasses Webhook SSRF Protections

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the DownloadImage function in pkg/utils/avatar.go uses a bare http.Client with no SSRF protection when downloading user avatar images from the OpenID Connect picture claim URL. An attacker who controls their...

CVE-2026-33679

Vikunja Open Source (self-hosted task manager) contains an SSRF vulnerability in the avatar download path. Before version 2.2.1, DownloadImage (pkg/utils/avatar.go) uses a bare http.Client with no SSRF protection when fetching the user’s OpenID Connect picture URL, enabling an attacker-controlled...

CVE-2026-33668

Vikunja vulnerability (CVE-2026-33668) affects versions prior to 2.2.1. When a user is disabled or locked, status checks are enforced only on local login and JWT refresh paths; API tokens, CalDAV basic auth, and OpenID Connect do not verify user status, allowing disabled/locked users to continue ...

CVE-2026-33668 Vikunja Allows Disabled/Locked User Accounts to Authenticate via API Tokens, CalDAV, and OpenID Connect

Vikunja is an open-source self-hosted task management platform. Starting in version 0.18.0 and prior to version 2.2.1, when a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths — API tokens, CalDAV...

CVE-2026-33668

Vikunja is an open-source self-hosted task management platform. Starting in version 0.18.0 and prior to version 2.2.1, when a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths — API tokens, CalDAV...

CVE-2026-33668 Vikunja Allows Disabled/Locked User Accounts to Authenticate via API Tokens, CalDAV, and OpenID Connect

Vikunja is an open-source self-hosted task management platform. Starting in version 0.18.0 and prior to version 2.2.1, when a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths — API tokens, CalDAV...

PT-2026-27452

Name of the Vulnerable Software and Affected Versions Vikunja versions prior to 2.2.1 Description Vikunja is a self-hosted task management platform. A flaw exists in the DownloadImage function within pkg/utils/avatar.go where insufficient Server-Side Request Forgery SSRF protection is applied whe...

PT-2026-27445

Name of the Vulnerable Software and Affected Versions Vikunja versions 0.18.0 through 2.2.0 Description Vikunja is a self-hosted task management platform. When a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. The API tokens,...

MinIO 授权问题漏洞

MinIO is an open-source object storage server developed by the American company MinIO. This product supports the creation of infrastructures for machine learning, analysis, and application data workloads. Versions of MinIO prior to RELEASE.2022-11-08T05-27-07Z to RELEASE.2026-03-17T21-25-16Z...

GO-2026-4779 MinIO has JWT Algorithm Confusion in OIDC Authentication in github.com/minio/minio

MinIO has JWT Algorithm Confusion in OIDC Authentication in github.com/minio/minio...

SUSE-SU-2026:0975-1 Security update for python-Authlib

This update for python-Authlib fixes the following issues: - CVE-2026-27962: JWS deserializecompact allows for signature bypass by accepting user-controlled embedded JWK as verification key bsc1259738. - CVE-2026-28490: cryptographic padding oracle in JWE RSA15 key management algorithm bsc1259736...

CVE-2026-33132

CVE-2026-33132 concerns Zitadel, an open source identity management platform. Connected advisories confirm a missing enforcement of organization scopes in Zitadel’s authentication flow, enabling a bypass of organization checks for users during sign-in. Affected components include the Zitadel core...

CVE-2026-33132 ZITADEL is missing enforcement of organization scopes

ZITADEL is an open source identity management platform. Versions prior to 3.4.9 and 4.0.0 through 4.12.2 allowed users to bypass organization enforcement during authentication. Zitadel allows applications to enforce an organzation context during authentication using scopes urn:zitadel:iam:org:id:...

BIT-CEPH-2024-48916 Ceph is vulnerable to authentication bypass through RadosGW

Ceph is a distributed object, block, and file storage platform. In versions 19.2.3 and below, it is possible to send an JWT that has "none" as JWT alg. And by doing so the JWT signature is not checked. The vulnerability is most likely in the RadosGW OIDC provider. As of time of publication, a kno...

Use of a Broken or Risky Cryptographic Algorithm

Overview Affected versions of this package are vulnerable to Use of a Broken or Risky Cryptographic Algorithm in the OpenID Connect authentication. An attacker can impersonate any user and obtain unauthorized S3 credentials with any policy, including administrative privileges, by forging identity...

MinIO has JWT Algorithm Confusion in OIDC Authentication

Impact What kind of vulnerability is it? Who is impacted? A JWT algorithm confusion vulnerability in MinIO's OpenID Connect authentication allows an attacker who knows the OIDC ClientSecret to forge arbitrary identity tokens and obtain S3 credentials with any policy, including consoleAdmin. An...

GHSA-5CX5-WH4M-82FH MinIO has JWT Algorithm Confusion in OIDC Authentication

Impact What kind of vulnerability is it? Who is impacted? A JWT algorithm confusion vulnerability in MinIO's OpenID Connect authentication allows an attacker who knows the OIDC ClientSecret to forge arbitrary identity tokens and obtain S3 credentials with any policy, including consoleAdmin. An...

PT-2026-26481

Name of the Vulnerable Software and Affected Versions MinIO versions RELEASE.2022-11-08T05-27-07Z through RELEASE.2026-03-17T21-25-16Z Description MinIO has a JWT algorithm confusion issue in its OpenID Connect authentication. An attacker who knows the OIDC ClientSecret can forge identity tokens...

Zitadel is missing enforcement of organization scopes

Summary A vulnerability in Zitadel's OAuth2/OIDC interface, which allowed users to bypass organization enforcement during authentication. Impact Zitadel allows applications to enforce an organzation context during authentication using scopes urn:zitadel:iam:org:id:id and...

CVE-2026-28498

A flaw was found in Authlib, a Python library used for building OAuth and OpenID Connect OIDC servers. This vulnerability allows a remote attacker to bypass critical integrity checks in OIDC ID Tokens. Specifically, the library's internal hash verification logic fails open when encountering an...