CVE-2025-31335

MEDIUM
4
CVSS Score
Published: March 28, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 09:10 AM UTC
1 product affected across 1 vendorOpensaml

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Severity
MEDIUM4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

The OpenSAML C++ library before 3.3.1 allows forging of signed SAML messages via parameter manipulation (when using SAML bindings that rely on non-XML signatures).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.3.1
Affected range stops below 3.3.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4MEDIUMmitre
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-347

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