Description
Shibboleth OpenSAML library 2.4.x before 2.4.3 and 2.5.x before 2.5.1, and IdP before 2.3.2, allows remote attackers to forge messages and bypass authentication via an "XML Signature wrapping attack."
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | opensaml2 | 2.3-2+squeeze1 | DSA-2284-1 |
| Debian 5.0 | opensaml2 | 2.0-2+lenny3 | DSA-2284-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.opensaml:opensaml | >= 2.4.0, < 2.4.3 | 2.4.3 | GHSA-qwwj-qj3f-9hv7 |
| Maven | org.opensaml:opensaml | >= 2.5.0, < 2.5.1 | 2.5.1 | GHSA-qwwj-qj3f-9hv7 |
Advisories 1
- DSA-2284-1 opensaml2 - implementation error Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://shibboleth.internet2.edu/secadv/secadv_20110725.txt
- DSA-2284 vendor-advisory
- 50994 third-party-advisory
- http://www.oracle.com/technetwork/topics/security/cpuoct2012-1515893.html
- MDVSA-2013:150 vendor-advisory