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CVE-2025-40934 Detail

Description

XML-Sig versions 0.27 through 0.67 for Perl incorrectly validates XML files if signatures are omitted. An attacker can remove the signature from the XML document to make it pass the verification check. XML-Sig is a Perl module to validate signatures on XML files.  An unsigned XML file should return an error message.  The affected versions return true when attempting to validate an XML file that contains no signatures.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/perl-net-saml2/perl-XML-Sig/issues/63 CPANSec
https://github.com/perl-net-saml2/perl-XML-Sig/pull/64 CPANSec

Weakness Enumeration

CWE-ID CWE Name Source
CWE-347 Improper Verification of Cryptographic Signature CPANSec  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-40934
NVD Published Date:
11/26/2025
NVD Last Modified:
11/26/2025
Source:
CPANSec