CVE-2021-31826
HIGH
7.5
CVSS Score
Published: April 27, 2021 at 03:33 AM UTC
Updated: June 17, 2026 at 03:52 AM UTC
1 product affected across 1 vendorService Provider
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
3.0.0 ≤ v < 3.2.2
Affected range stops below 3.2.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (5)
x_refsource_MISCMailing ListThird Party Advisory
Source: [email protected]
https://bugs.debian.org/987608x_refsource_MISCExploitPatchVendor Advisory
Source: [email protected]
https://issues.shibboleth.net/jira/browse/SSPCPP-927x_refsource_MISCVendor Advisory
Source: [email protected]
https://shibboleth.net/community/advisories/secadv_20210426.txtVendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2021/dsa-4905CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-476
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