CVE-2025-48995

SignXML is an implementation of the W3C XML Signature standard in Python. When verifying signatures with X509 certificate validation turned off and HMAC shared secret set signxml.XMLVerifier.verifyrequirex509=False, hmackey=..., versions of SignXML prior to 4.0.4 are vulnerable to a potential...

CVE-2025-48995

creationtimestamp| type| source ---|---|--- 2025-06-02 17:04:06+00:00| seen| https://bsky.app/profile/2rZiKKbOU3nTafniR2qMMSE0gwZ.activitypub.awakari.com.ap.brid.gy/post/3lqnawo6y44y2...

CVE-2025-48995

SignXML is an implementation of the W3C XML Signature standard in Python. When verifying signatures with X509 certificate validation turned off and HMAC shared secret set signxml.XMLVerifier.verifyrequirex509=False, hmackey=..., versions of SignXML prior to 4.0.4 are vulnerable to a potential...

CVE-2025-48995

CVE-2025-48995 affects SignXML (Python implementation of W3C XML Signature) prior to 4.0.4. When verify() is called with require_x509=False and an HMAC secret (hmac_key=...), the timing-based vulnerability may leak information about the correct HMAC during the comparison, enabling reconstruction ...