CVE-2021-31826

HighCVSS 7.5/10Last 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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://bugs.debian.org/987608Mailing List, Third Party Advisory
https://git.shibboleth.net/view/?p=cpp-sp.git%3Ba=commit%3Bh=5a47c3b9378f4c49392dd4d15189b70956f9f2ec
https://issues.shibboleth.net/jira/browse/SSPCPP-927Exploit, Patch, Vendor Advisory
https://shibboleth.net/community/advisories/secadv_20210426.txtVendor Advisory
https://www.debian.org/security/2021/dsa-4905Third Party Advisory
https://bugs.debian.org/987608Mailing List, Third Party Advisory
https://git.shibboleth.net/view/?p=cpp-sp.git%3Ba=commit%3Bh=5a47c3b9378f4c49392dd4d15189b70956f9f2ec
https://issues.shibboleth.net/jira/browse/SSPCPP-927Exploit, Patch, Vendor Advisory
https://shibboleth.net/community/advisories/secadv_20210426.txtVendor Advisory
https://www.debian.org/security/2021/dsa-4905Third Party Advisory

Timeline

Published: Apr 27, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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