SQL Injection in Shibboleth Service Provider

CVE-2025-9943

An SQL injection vulnerability has been identified in the "ID" attribute of the SAML response when the replay cache of the Shibboleth Service Provider (SP) is configured to use an SQL database as storage service. An unauthenticated attacke…

Vulnerability class: SQL Injection

EPSS: 0.004 (28.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-9943?
CVE-2025-9943 is a critical-severity vulnerability in Shibboleth Service Provider, classified under SQL Injection. CVSS score: 9.1/10. Published 2025-09-10.
How severe is CVE-2025-9943?
Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2025-9943 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.