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THREAT OPS › Threat News › [NVD] CVE-2026-80428 (CRITICAL 9.8) — ILIAS deserialises stored session data for an unauthenticated caller. The Shibboleth back-channel endpoint at components/ILIAS/AuthShibboleth/resources/shib_logout.php runs in a context that ilInitialisation exempts from authentication, and its logout-notification handler locates

[NVD] CVE-2026-80428 (CRITICAL 9.8) — ILIAS deserialises stored session data for an unauthenticated caller. The Shibboleth back-channel endpoint at components/ILIAS/AuthShibboleth/resources/shib_logout.php runs in a context that ilInitialisation exempts from authentication, and its logout-notification handler locates

mednvdPublished 2026-08-26

CVE-2026-80428 CVSS: 9.8 CRITICAL Published: 2026-08-26T16:16:45.100

ILIAS deserialises stored session data for an unauthenticated caller. The Shibboleth back-channel endpoint at components/ILIAS/AuthShibboleth/resources/shib_logout.php runs in a context that ilInitialisation exempts from authentication, and its logout-notification handler locates the session to terminate by reading every live ro

Indicators of compromise

CVE-2026-80428cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-80428