CVE-2021-31826

PoC —

CVSS 3.1

7.5 high

EPSS

2%p80

Published

Apr 27, 2021 (Apr 27, 2021)

Modified

Jun 17, 2026

Description

Shibboleth Service Provider 3.x before 3.2.2 is prone to a NULL pointer dereference flaw involving the session recovery feature. The flaw is exploitable (for a daemon crash) on systems not using this feature if a crafted cookie is supplied.

Vendors: shibboleth
Products: service provider
Weakness: CWE-476
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (2.0%)

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