CVE-2025-48994
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-48994
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-48994.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-48994
- Aliases
- Downstream
- Published
- 2025-06-02T17:15:40Z
- Modified
- 2025-06-18T23:42:44.880051Z
- Summary
- [none]
- Details
-
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.verify(require_x509=False, hmac_key=...), versions of SignXML prior to 4.0.4 are vulnerable to a potential algorithm confusion attack. Unless the user explicitly limits the expected signature algorithms using thesignxml.XMLVerifier.verify(expect_config=...)setting, an attacker may supply a signature unexpectedly signed with a key other than the provided HMAC key, using a different (asymmetric key) signature algorithm. Starting with SignXML 4.0.4, specifyinghmac_keycauses the set of accepted signature algorithms to be restricted to HMAC only, if not already restricted by the user. - References
Affected packages
Debian:13 / python-signxml
Package
- Name
- python-signxml
- Purl
- pkg:deb/debian/python-signxml?arch=source
Git / github.com/xml-security/signxml
Affected ranges
- Type
- GIT
- Repo
- https://github.com/xml-security/signxml
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed