VDB
PYSEC-2020-94
PYSEC-2020-94
PUBLISHED
PySAML2 before 5.0.0 does not check that the signature in a SAML document is enveloped and thus signature wrapping is effective, i.e., it is affected by XML Signature Wrapping (XSW). The signature information and the node/object that is signed can be in different places and thus the signature verification will succeed, but the wrong data will be used. This specifically affects the verification of assertion that have been signed.
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| PyPI | pysaml2 | 0, 0, 0.4.3 |
Timeline
- Jan 13, 2020 CVE Published
- Nov 8, 2023 CVE Updated
- May 1, 2026 Distribution Patch
- May 1, 2026 Security Advisory
References
- https://pypi.org/project/pysaml2/5.0.0/ package
- https://github.com/IdentityPython/pysaml2/releases url
- https://github.com/advisories/GHSA-qf7v-8hj3-4xw7 advisory
- https://github.com/IdentityPython/pysaml2/releases/tag/v5.0.0 fix
- https://github.com/IdentityPython/pysaml2/commit/f27c7e7a7010f83380566a219fd6a290a00f2b6e fix
- https://github.com/IdentityPython/pysaml2/commit/5e9d5acbcd8ae45c4e736ac521fd2df5b1c62e25 fix
- https://usn.ubuntu.com/4245-1/ advisory
- https://www.debian.org/security/2020/dsa-4630 advisory
- https://lists.debian.org/debian-lts-announce/2020/02/msg00025.html advisory