XML External Entity (XXE) vulnerability in PySAML2 4.4.0 and earlier allows remote attackers to read arbitrary files via a crafted SAML XML request or response.
https://github.com/rohe/pysaml2/pull/379
https://github.com/rohe/pysaml2/issues/366
https://github.com/rohe/pysaml2/commit/6e09a25d9b4b7aa7a506853210a9a14100b8bc9b
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=850716
https://access.redhat.com/errata/RHSA-2017:0938
https://access.redhat.com/errata/RHSA-2017:0937
https://access.redhat.com/errata/RHSA-2017:0936
http://www.securityfocus.com/bid/97692
Published: 2017-03-24
Updated: 2025-04-20
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: High
Base Score: 8.7
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Severity: High