PYSEC-2026-390 LiteLLM: Authentication bypass via OIDC userinfo cache key collision

Impact When JWT authentication is enabled enablejwtauth: true, the OIDC userinfo cache uses token:20 as the cache key. JWT headers produced by the same signing algorithm generate identical first 20 characters. This configuration option is not enabled by default. Most instances are not affected. A...

CVE-2026-54588 Poweradmin has Host Header Injection in OIDC redirect_uri, SAML ACS/SLO URL, and Logout Redirect Construction.

Poweradmin is a web-based DNS administration tool for PowerDNS server. Versions prior to 4.2.4 and 4.3.3 use the attacker-controlled HTTPHOST request header as the authoritative source for building callback URLs in its OIDC, SAML, and logout authentication flows without any validation. An...

CVE-2026-49757

Authentication Bypass by Spoofing vulnerability in team-alembic AshAuthentication allows account takeover of local users via OAuth2/OIDC sign-in. AshAuthentication's OAuth2 and OIDC family strategies matched the local user by email address an upsert on the email field, or a user-defined sign-in...

PT-2026-49202

Name of the Vulnerable Software and Affected Versions ash authentication versions 0.1.0 through 4.13.x ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.9 Description An authentication bypass by spoofing allows account takeover of local users during OAuth2 or OIDC sign-in. The issue occurs...

CVE-2026-48558 SimpleHelp Authentication Bypass via Missing OIDC JWT Signature Verification

SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a...

PT-2026-48947

Name of the Vulnerable Software and Affected Versions SimpleHelp versions 5.5.15 and earlier SimpleHelp 6.0 pre-release versions Description An authentication bypass exists in the OpenID Connect OIDC authentication flow. When OIDC is configured, the software accepts identity tokens during login...

Linux Distros Unpatched Vulnerability : CVE-2026-9742

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When OIDC authentication is enabled in configuration, clients may set specific values in the mechanism parameter of the authenticate command that lead to server...

CVE-2026-9742

When OIDC authentication is enabled in configuration, clients may set specific values in the "mechanism" parameter of the "authenticate" command that lead to server crash. The authenticate command is accessible to unauthenticated clients, leading to pre-auth denial-of-service in affected product...

CVE-2026-9742

The CVE-2026-9742 entry describes a vulnerability in MongoDB where, when OIDC authentication is enabled, a crafted value in the mechanism parameter of the authenticate command can crash the server. The authenticate command is reachable by unauthenticated clients, enabling pre-auth denial-of-servi...

CVE-2025-15621

Insufficiently Protected Credentials in Sparx Systems Pty Ltd. Sparx Enterprise Architect. Client does not verify the receiver of OAuth2 credentials during OpenID authentication...

CVE-2025-15624

Plaintext Storage of a Password vulnerability in Sparx Systems Pty Ltd. Sparx Pro Cloud Server. In a setup where OpenID is used as the primary method of authentication to authenticate to Sparx EA, Pro Cloud Server creates local passwords to the users and stores them in plaintext...

CVE-2026-41200

STIG Manager is an API and web client for managing Security Technical Implementation Guides STIG assessments of Information Systems. Versions 1.5.10 through 1.6.7 have a reflected Cross-Site Scripting XSS vulnerability in the OIDC authentication error handling code in src/init.js and...

CVE-2026-41571

Note Mark is an open-source note-taking application. In version 0.19.2, IsPasswordMatch in backend/db/models.go falls back to a hard-coded bcrypt"null" placeholder whenever a user has no stored password. OIDC-registered users are created with an empty password, so anyone who submits password:...

MAL-2026-5234 Malicious code in awaitly (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware a2af5864a1d317bcc70096c02229d56d855d608e28196b1ed98c7884be7a2ab6 Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

Malicious code in autotel-tanstack (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware d26623d51a6dce199f16db3cf3c3aecc028dc3fe314f09e49f4d16e4bac0af4e Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

Malicious code in @vapi-ai/server-sdk (npm)

--- -= Per source details. Do not edit below this line.=- Source: google-open-source-security a6c7977dbc054cdb7fe56da0d2fbd26e2a6fed695deb4263ccbf4adfedd86acb The Miasma malware is a self-propagating worm that spreads across the npm registry by abusing weaponized binding.gyp files to achieve...

CVE-2026-45284

Nextcloud is an open source content collaboration platform. From version 1.3.6 to before version 8.4.0, an improper check allowed users that where provided by LDAP to still authenticate towards user OIDC after they where deleted. This issue has been patched in version 8.4.0...

CVE-2026-45156 Nextcloud: Authentication Bypass in ID4me handling via Missing JWT Signature Verification in User OIDC

Nextcloud is an open source content collaboration platform. From versions 0.3.0 to before 3.1.0, 5.0.0 to before 5.1.0, and 6.0.0 to before 6.4.0, a missing signature verification in User OIDC allowed a malicious ID4me authority to identify as any user. This issue has been patched in versions...

Admidio: CSRF in SSO client `enable` action toggles SAML/OIDC clients without token validation

Summary modules/sso/clients.php validates an admcsrftoken on every state-changing branch except enable. The enable case loads the SAML or OIDC client by UUID, calls $client-enable$enabled, and persists the new state with no token check. Because the action is reachable via plain GET parameters, a...

SUSE CVE-2026-45321

On 2026-05-11, between approximately 19:20 and 19:26 UTC, 84 malicious versions across 42 @tanstack/ packages were published to the npm registry. The publishes were authenticated via the legitimate GitHub Actions OIDC trusted-publisher binding for TanStack/router, but the publish workflow itself...