CVE-2026-54789

A flaw was found in modauthopenidc, an OpenID Connect Relying Party module for Apache HTTP servers. A remote attacker can exploit this vulnerability by sending a specially crafted HTTP request with a malformed state cookie. This can lead to an out-of-bounds read and a one-byte out-of-bounds write...

Linux Distros Unpatched Vulnerability : CVE-2026-54789

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - modauthopenidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party...

CVE-2026-54789

modauthopenidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.19.4, an out-of-bounds read and a one-byte out-of-bounds write exist in the state-cookie parser of...

CVE-2026-54789 mod_auth_openidc has out-of-bounds read and write in state cookie parsing

modauthopenidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.19.4, an out-of-bounds read and a one-byte out-of-bounds write exist in the state-cookie parser of...

CVE-2026-54789

mod_auth_openidc (Apache 2.x OpenID Connect Relying Party module) prior to 2.4.19.4 contains an out-of-bounds read and one-byte out-of-bounds write in oidc_state_cookies_parse_token() (src/state.c). The loop scanning for = in a cookie token does not stop at the string terminator, and the cookie !...

CVE-2026-54789

modauthopenidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.19.4, an out-of-bounds read and a one-byte out-of-bounds write exist in the state-cookie parser of...

CVE-2026-54789 mod_auth_openidc has out-of-bounds read and write in state cookie parsing

modauthopenidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.19.4, an out-of-bounds read and a one-byte out-of-bounds write exist in the state-cookie parser of...

EUVD-2026-64000

modauthopenidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.19.4, an out-of-bounds read and a one-byte out-of-bounds write exist in the state-cookie parser of...

OESA-2026-3009 mod_auth_openidc security update

This module enables an Apache 2.x web server to operate as an OpenID Connect Relying PartyRP to an OpenID Connect ProviderOP. Security Fixes: An out-of-bounds read and a one-byte out-of-bounds write exist in the state-cookie parser of modauthopenidc. oidcstatecookiesparsetoken src/state.c scans a...

OESA-2026-3010 mod_auth_openidc security update

This module enables an Apache 2.x web server to operate as an OpenID Connect Relying PartyRP to an OpenID Connect ProviderOP. Security Fixes: An out-of-bounds read and a one-byte out-of-bounds write exist in the state-cookie parser of modauthopenidc. oidcstatecookiesparsetoken src/state.c scans a...

OESA-2026-3011 mod_auth_openidc security update

This module enables an Apache 2.x web server to operate as an OpenID Connect Relying PartyRP to an OpenID Connect ProviderOP. Security Fixes: An out-of-bounds read and a one-byte out-of-bounds write exist in the state-cookie parser of modauthopenidc. oidcstatecookiesparsetoken src/state.c scans a...

Unity Linux 20.1060e / 20.1070e Security Update: mod_auth_openidc (UTSA-2026-016590)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016590 advisory. modauthopenidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users again...

Advisory ROSA-SA-2026-3156

Software: modauthopenidc 2.4.9.4 OS: ROSA Virtualization 3.1 unaffected versions = modauthopenidc-2.4.9.4-8.rv31 affected versions modauthopenidc-2.4.9.4-8.rv31 CVE-ID: CVE-2025-3891 BDU-ID: 2025-10948 CVE-Crit: HIGH CVE-DESC.: A vulnerability in the authentication and authorization module for...

MiracleLinux 9 : mod_auth_openidc-2.4.9.4-4.el9 (AXSA:2023-6773:01)

The remote MiracleLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2023-6773:01 advisory. modauthopenidc: Open Redirect in oidcvalidateredirecturl using tab character CVE-2022-23527 modauthopenidc: NULL pointer dereference when...

MiracleLinux 8 : mod_auth_openidc:2.3 (AXSA:2024-8687:01)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2024-8687:01 advisory. modauthopenidc: DoS when using OIDCSessionType client-cookie and manipulating cookies CVE-2024-24814 Tenable has extracted the preceding description block...

MiracleLinux 8 : mod_auth_openidc:2.3 (AXSA:2023-7316:01)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2023-7316:01 advisory. modauthopenidc: Open Redirect in oidcvalidateredirecturl using tab character CVE-2022-23527 modauthopenidc: NULL pointer dereference when...

MiracleLinux 9 : mod_auth_openidc-2.4.10-1.el9 (AXSA:2024-9233:01)

The remote MiracleLinux 9 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2024-9233:01 advisory. modauthopenidc: DoS when using OIDCSessionType client-cookie and manipulating cookies CVE-2024-24814 Tenable has extracted the preceding description block...

MiracleLinux 8 : mod_auth_openidc:2.3 (AXSA:2025-9893:01)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2025-9893:01 advisory. modauthopenidc: modauthopenidc allows OIDCProviderAuthRequestMethod POSTs to leak protected data CVE-2025-31492 Tenable has extracted the preceding descripti...

MiracleLinux 9 : mod_auth_openidc-2.4.10-1.el9_6.1 (AXSA:2025-10456:01)

The remote MiracleLinux 9 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2025-10456:01 advisory. modauthopenidc: modauthopenidc allows OIDCProviderAuthRequestMethod POSTs to leak protected data CVE-2025-31492 Tenable has extracted the preceding...

MiracleLinux 8 : mod_auth_openidc:2.3 (AXSA:2025-9917:01)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2025-9917:01 advisory. modauthopenidc: DoS via Empty POST in modauthopenidc with OIDCPreservePost Enabled CVE-2025-3891 Tenable has extracted the preceding description block direct...