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Fencer Vulns
critical 9.1

CVE-2022-41912 json

crewjam/saml go library is vulnerable to signature bypass via multiple Assertion elements

published 2022-11-28 3 y ago modified 2026-06-17 4 mo ago also GHSA-j2jp-wvqg-wc2g , GO-2022-1129 , EUVD-2022-7368

cvss
9.1
version 3.1, CNA
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

The crewjam/saml go library prior to version 0.4.9 is vulnerable to an authentication bypass when processing SAML responses containing multiple Assertion elements. This issue has been corrected in version 0.4.9. There are no workarounds other than upgrading to a fixed version.

Patch / fix

  • go github.com/crewjam/saml 0.4.9
  • saml_project saml 0.4.9

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-2022-41912 updated cvss 9.1

crewjam/saml: Authentication bypass when processing SAML responses containing multiple Assertion elements

  • Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/acm-grafana-rhel8
    affected: no fix available
  • Red Hat Ceph Storage 6.1 Tools rhceph/rhceph-6-dashboard-rhel9 6-75
    fixed: vendor fix RHSA-2023:3642
  • Red Hat OpenShift Container Platform 4.8 openshift4/ose-grafana v4.8.0-202301100925.p0.g7156d02.assembly.stream
    fixed: vendor fix RHSA-2023:0237
  • Red Hat OpenShift Container Platform 4.9 openshift4/ose-grafana v4.9.0-202301301454.p0.g06135eb.assembly.stream
    fixed: vendor fix RHSA-2023:0574
  • Red Hat OpenShift Container Platform 4.10 openshift4/ose-grafana v4.10.0-202301040925.p0.gca476d4.assembly.stream
    fixed: vendor fix RHSA-2023:0032
  • Red Hat OpenShift Container Platform 4.11 openshift4/ose-grafana v4.11.0-202212190555.p0.gbc05ec1.assembly.stream
    fixed: vendor fix RHSA-2022:9108
  • Red Hat Ceph Storage 5 rhceph/rhceph-5-dashboard-rhel8 Red Hat Ceph Storage 6.1 Tools rhceph/rhceph-6-rhel9 6-177, rhceph/keepalived-rhel9 2.2.4-3, rhceph/snmp-notifier-rhel9 1.2.1-36, rhceph/rhceph-haproxy-rhel9 2.4.17-4, rhceph/rhceph-promtail-rhel9 v2.4.0-5 Red Hat Enterprise Linux 8 grafana, grafana-loki, grafana-mssql, grafana-mysql, grafana-selinux, grafana-graphite, +8 more Red Hat OpenShift Container Platform 4.8 openshift4/ose-jenkins v4.8.0-202301181045.p0.gb6ce8e7.assembly.stream, openshift4/ose-jenkins-agent-base v4.8.0-202301181045.p0.gb6ce8e7.assembly.stream, openshift4/ose-jenkins-agent-maven v4.8.0-202301181045.p0.gb6ce8e7.assembly.stream, openshift4/ose-csi-driver-nfs-rhel8 v4.8.0-202301170945.p0.g583088e.assembly.stream, openshift4/ose-baremetal-installer-rhel8 v4.8.0-202301170945.p0.gd568517.assembly.stream, openshift4/ose-jenkins-agent-nodejs-12-rhel8 v4.8.0-202301181045.p0.gb6ce8e7.assembly.stream, +2 more Red Hat OpenShift Container Platform 4.9 openshift4/ose-cli v4.9.0-202301301454.p0.g88cfeb4.assembly.stream, openshift4/ose-pod v4.9.0-202301301454.p0.gc763d11.assembly.stream, openshift4/ose-etcd v4.9.0-202301301454.p0.g9aaa8c6.assembly.stream, openshift4/ose-tests v4.9.0-202301301454.p0.g9830fc9.assembly.stream, openshift4/ose-console v4.9.0-202301301454.p0.g04f9d38.assembly.stream, openshift4/ose-coredns v4.9.0-202301302354.p0.ge332b9e.assembly.stream, +148 more Red Hat OpenShift Container Platform 4.10 openshift4/ose-coredns v4.10.0-202212221024.p0.g6c03251.assembly.stream, openshift4/ose-jenkins v4.10.0-202212221134.p0.g30f4d11.assembly.stream, openshift4/ose-installer v4.10.0-202212221404.p0.gdd5f512.assembly.stream, openshift4/ose-ovn-kubernetes v4.10.0-202212250224.p0.g8bafd8c.assembly.stream, openshift4/network-tools-rhel8 v4.10.0-202212250224.p0.gbcfec9c.assembly.stream, openshift4/ose-installer-artifacts v4.10.0-202212221404.p0.gdd5f512.assembly.stream, +3 more
    +1 more products
    Red Hat OpenShift Container Platform 4.11 openshift4/metallb-rhel8 v4.11.0-202212161404.p0.g5eb091e.assembly.stream, openshift4/ose-descheduler v4.11.0-202212141745.p0.g8157de3.assembly.stream, openshift4/ose-ptp-operator v4.11.0-202212072254.p0.g48efce6.assembly.stream, openshift4/ose-cloud-event-proxy v4.11.0-202212072254.p0.g3e5a7cc.assembly.stream, openshift4/metallb-rhel8-operator v4.11.0-202212161404.p0.g64ad620.assembly.stream, openshift4/cloud-event-proxy-rhel8 v4.11.0-202212072254.p0.g3e5a7cc.assembly.stream, +10 more
    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

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
18 mo ago

Exploit prediction

2.34% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
go github.com/crewjam/saml
<0.4.9
0.4.9

Affected products

  • crewjam saml

Classification

Weakness

References

Sources

Fencer Vulns 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.