Shibboleth OpenSAML C++ library up to 3.3.0 XML Signature signature verification
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 3.8 | $0-$5k | 0.00 |
Summary
A vulnerability labeled as problematic has been found in Shibboleth OpenSAML C++ library up to 3.3.0. Affected is an unknown function of the component XML Signature Handler. Such manipulation leads to signature verification. This vulnerability is referenced as CVE-2025-31335. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.
Details
A vulnerability was found in Shibboleth OpenSAML C++ library up to 3.3.0. It has been rated as problematic. Affected by this issue is an unknown part of the component XML Signature Handler. The manipulation with an unknown input leads to a signature verification vulnerability. Using CWE to declare the problem leads to CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. Impacted is integrity. CVE summarizes:
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).
The advisory is available at shibboleth.net. This vulnerability is handled as CVE-2025-31335 since 03/28/2025. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.
The vulnerability scanner Nessus provides a plugin with the ID 235635 (SUSE SLES12 Security Update : opensaml (SUSE-SU-2025:1501-1)), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 3.3.1 eliminates this vulnerability.
The vulnerability is also documented in the databases at Tenable (235635) and EUVD (EUVD-2025-14769). If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.8VulDB Meta Temp Score: 3.8
VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 4.0
CNA Vector (MITRE): 🔍
CVSSv2
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Signature verificationCWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 235635
Nessus Name: SUSE SLES12 Security Update : opensaml (SUSE-SU-2025:1501-1)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: OpenSAML C++ library 3.3.1
Timeline
03/28/2025 🔍03/28/2025 🔍
03/28/2025 🔍
05/27/2025 🔍
Sources
Advisory: shibboleth.netStatus: Confirmed
CVE: CVE-2025-31335 (🔍)
GCVE (CVE): GCVE-0-2025-31335
GCVE (VulDB): GCVE-100-301850
EUVD: 🔍
Entry
Created: 03/28/2025 07:01Updated: 05/27/2025 00:28
Changes: 03/28/2025 07:01 (64), 05/09/2025 22:12 (2), 05/27/2025 00:28 (1)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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