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TI-2022-20253 Aliases CVE-2022-41912GHSA-j2jp-wvqg-wc2g

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

Priority MEDIUM 53CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 5 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-287.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02337 83rd percentileScored 2026-11-07
Fix Partial saml (crewjam): 0.4.9github.com/crewjam/saml (Go): 0.4.9Red Hat: 6 advisoriesRed Hat: 5 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
crewjamsamlbefore 0.4.90.4.9Patch availableCNA
—github.com/crewjam/saml (Go)before 0.4.90.4.9Patch availableGHSA-j2jp-wvqg-wc2g
  • saml Vendorcrewjam Affected before 0.4.9 Fixed in 0.4.9 Patch available CNA
  • github.com/crewjam/saml (Go) Vendor— Affected before 0.4.9 Fixed in 0.4.9 Patch available GHSA-j2jp-wvqg-wc2g

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:saml_project:saml:*:*:*:*:*:go:*:*before 0.4.9Vulnerablecrewjam
  • cpe:2.3:a:saml_project:saml:*:*:*:*:*:go:*:* Versions before 0.4.9 Vulnerable ·crewjam

Remediation

  • Fix · CNA saml (crewjam) Fixed in 0.4.9
  • Fix · GHSA-j2jp-wvqg-wc2g github.com/crewjam/saml (Go) Fixed in 0.4.9 Advisory →

Red Hat 6 advisories

  • RHSA-2023:3642 Released 2023-06-15 · Red Hat rating Important
    Red Hat Ceph Storage 6.1 Container security and bug fix update
    • Red Hat Ceph Storage 6.1 Tools rhceph/keepalived-rhel9, rhceph/rhceph-6-dashboard-rhel9, rhceph/rhceph-6-rhel9 +3
  • RHSA-2023:0574 Released 2023-02-13 · Red Hat rating Critical
    OpenShift Container Platform 4.9.55 security update
    • Red Hat OpenShift Container Platform 4.9 openshift4/ose-cluster-network-operator, openshift4/ose-etcd, openshift4/ose-grafana
  • RHSA-2023:0237 Released 2023-01-25 · Red Hat rating Important
    OpenShift Container Platform 4.8.57 security update
    • Red Hat OpenShift Container Platform 4.8 openshift4/ose-grafana
Show 3 more Red Hat advisories
  • RHSA-2023:0032 Released 2023-01-10 · Red Hat rating Important
    OpenShift Container Platform 4.10.47 bug fix and security update
    • Red Hat OpenShift Container Platform 4.10 openshift4/ose-grafana
  • RHSA-2022:9108 Released 2023-01-04 · Red Hat rating Important
    OpenShift Container Platform 4.11.21 extras and security update
    • Red Hat OpenShift Container Platform 4.11 openshift4/ose-grafana
  • RHSA-2022:9040 Released 2022-12-14 · Red Hat rating Important
    Red Hat Advanced Cluster Management 2.6.3 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.6 for RHEL 8 rhacm2/acm-governance-policy-addon-controller-rhel8, rhacm2/acm-grafana-rhel8, rhacm2/acm-must-gather-rhel8 +45

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Advanced Cluster Management for Kubernetes 2AffectedNo fix yet
Red Hat Ceph Storage 6.1 ToolsFixed RHSA-2023:3642
Red Hat OpenShift Container Platform 4.10Fixed RHSA-2023:0032
Red Hat OpenShift Container Platform 4.11Fixed RHSA-2022:9108
Red Hat OpenShift Container Platform 4.8Fixed RHSA-2023:0237
Red Hat OpenShift Container Platform 4.9Fixed RHSA-2023:0574
Not affected: 7 products
  • Red Hat Ceph Storage 5
  • Red Hat Ceph Storage 6.1 Tools
  • Red Hat Enterprise Linux 8
  • Red Hat OpenShift Container Platform 4.10
  • Red Hat OpenShift Container Platform 4.11
  • Red Hat OpenShift Container Platform 4.8
  • Red Hat OpenShift Container Platform 4.9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-41912
  2. 2026-10-03 Alias added: GHSA-j2jp-wvqg-wc2g

References

Patch 1

Advisory 3

Other 4

  • TI-2020-16916 Improper authentication in crewjam/saml CVSS 3.1CRITICAL 9.8
  • TI-2023-12698 crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb CVSS 3.1HIGH 7.5
  • TI-2023-24482 Cross site scripting via missing binding syntax validation In ACS location in github.com/crewjam/saml CVSS 3.1HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences