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Fencer Intel
medium 5.8

CVE-2011-1411 json

Improper Authentication in OpenSAML

published 2011-09-02 15 y ago modified 2026-06-16 4 mo ago also GHSA-qwwj-qj3f-9hv7 , EUVD-2022-5052

cvss
5.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

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."

Patch / fix

  • maven org.opensaml:opensaml 2.4.3, 2.5.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-1411 updated cvss 5.8

opensaml: vulnerable to XML signature wrapping attacks

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.29% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N

Affected packages

ecosystem package affected fixed in
maven org.opensaml:opensaml
>=2.4.0, <2.4.3
>=2.5.0, <2.5.1
2.4.3
2.5.1

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.