CVE-2026-87876

Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler printer ACL validation and private-attribute filtering could allow bypass of username-based access controls in certain configurations...

CVE-2026-87853

A flaw was found in SSSD's IdP authentication provider. The evalaccesstokenbuf function compares the OIDC subject identifier using strncmp with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attacker whose IdP identifier is a strict prefix...

DEBIAN-CVE-2026-87853

A flaw was found in SSSD's IdP authentication provider. The evalaccesstokenbuf function compares the OIDC subject identifier using strncmp with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attacker whose IdP identifier is a strict prefix...

UBUNTU-CVE-2026-87876

Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler printer ACL validation and private-attribute filtering could allow bypass of username-based access controls in certain configurations...

CVE-2026-87876

Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler printer ACL validation and private-attribute filtering could allow bypass of username-based access controls in certain configurations...

CVE-2026-87876 Cups: openprinting cups: remaining case-insensitive username matching in scheduler side paths (cve-2026-27447 follow-up)

Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler printer ACL validation and private-attribute filtering could allow bypass of username-based access controls in certain configurations...

EUVD-2026-75089

Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler printer ACL validation and private-attribute filtering could allow bypass of username-based access controls in certain configurations...

CVE-2026-87876

Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler printer ACL validation and private-attribute filtering could allow bypass of username-based access controls in certain configurations...

CVE-2026-87876

Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler printer ACL validation and private-attribute filtering could allow bypass of username-based access controls in certain configurations. Mitigation Fixed on upstream master branch...

CVE-2026-87853 Sssd: sssd: idp authentication prefix comparison allows cross-user impersonation

A flaw was found in SSSD's IdP authentication provider. The evalaccesstokenbuf function compares the OIDC subject identifier using strncmp with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attacker whose IdP identifier is a strict prefix...

CVE-2026-87853 Sssd: sssd: idp authentication prefix comparison allows cross-user impersonation

A flaw was found in SSSD's IdP authentication provider. The evalaccesstokenbuf function compares the OIDC subject identifier using strncmp with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attacker whose IdP identifier is a strict prefix...

CVE-2026-87853

A flaw was found in SSSD's IdP authentication provider. The evalaccesstokenbuf function compares the OIDC subject identifier using strncmp with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attacker whose IdP identifier is a strict prefix...

CVE-2026-87853

SSSD (System Security Services Daemon) contains a flaw in its IdP authentication provider . The eval_access_token_buf() function compares the OIDC subject identifier using strncmp() with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attac...

CVE-2026-87853

A flaw was found in SSSD's IdP authentication provider. The evalaccesstokenbuf function compares the OIDC subject identifier using strncmp with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attacker whose IdP identifier is a strict prefix...

kernel: io_uring/poll: fix signed comparison in io_poll_get_ownership()

A flaw was found in the Linux kernel's iouring/poll component. A logic error exists in the iopollgetownership function due to an incorrect signed comparison. This flaw prevents the necessary slowpath from being triggered when the IOPOLLCANCELFLAG is set, potentially leading to unexpected behavior...

SUSE CVE-2026-55785

free5GC is an open-source implementation of the 5G core network. Prior to 1.4.5, the AUSF component performs cryptographic authentication comparisons in internal/sbi/processor/ueauthentication.go with ordinary equality helpers. Auth5gAkaComfirmRequestProcedure compares RES and XRES with...

PT-2026-88811

An issue was discovered in the mirage-crypto package before 2.2.0 for OCaml. The AES.GCM.authenticate decrypt into and Chacha20.authenticate decrypt into functions write the decrypted plaintext into a caller-provided buffer and only then compares the tag. On a forged tag, the functions returns...

Linux Distros Unpatched Vulnerability : CVE-2026-87876

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler printer ACL validation and private-attribu...

CVE-2026-87853: Partial String Comparison

A flaw was found in SSSD's IdP authentication provider. The evalaccesstokenbuf function compares the OIDC subject identifier using strncmp with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attacker whose IdP identifier is a strict prefix...

CVE-2026-87876: Improper Handling of Case Sensitivity

Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler printer ACL validation and private-attribute filtering could allow bypass of username-based access controls in certain configurations...