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TI-2021-12742 Aliases CVE-2021-33194GHSA-83g2-8m93-v3w7

golang.org/x/net before v0.0.0-20210520170846-37e1c6afe023 allows attackers to cause a…

Priority MEDIUM 43CWE-835Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 3 fixed, 8 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-835.

Summary

golang.org/x/net before v0.0.0-20210520170846-37e1c6afe023 allows attackers to cause a denial of service (infinite loop) via crafted ParseFragment input.

Why it matters now

EPSS 0.07492 94th percentileScored 2026-11-07
Fix Partial golang.org/x/net (Go): 0.0.0-20210520170846-37e1c6afe023Red Hat: 3 advisoriesRed Hat: 3 fixed, 8 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—golang.org/x/net (Go)before 0.0.0-20210520170846-37e1c6afe0230.0.0-20210520170846-37e1c6afe023Patch availableGHSA-83g2-8m93-v3w7
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • golang.org/x/net (Go) Vendor— Affected before 0.0.0-20210520170846-37e1c6afe023 Fixed in 0.0.0-20210520170846-37e1c6afe023 Patch available GHSA-83g2-8m93-v3w7

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*up to 1.15.12; 1.16.0 – 1.16.4VulnerableGo standard library
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*36VulnerableFedoraproject
  • cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* Versions up to 1.15.12; 1.16.0 – 1.16.4 Vulnerable ·Go standard library
  • cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject

Remediation

  • Fix · GHSA-83g2-8m93-v3w7 golang.org/x/net (Go) Fixed in 0.0.0-20210520170846-37e1c6afe023 Advisory →

Red Hat 3 advisories

  • RHSA-2021:4627 Released 2021-11-15 · Red Hat rating Moderate
    Openshift Logging 5.3.0 bug fix and security update
    • OpenShift Logging 5.3 openshift-logging/elasticsearch-proxy-rhel8, openshift-logging/elasticsearch-rhel8-operator
  • RHSA-2021:3759 Released 2021-10-18 · Red Hat rating Moderate
    OpenShift Container Platform 4.9.0 bug fix and security update
    • Red Hat OpenShift Container Platform 4.9 openshift4/ose-baremetal-rhel8-operator, openshift4/ose-console, openshift4/ose-etcd +4
  • RHSA-2021:2438 Released 2021-07-27 · Red Hat rating Moderate
    OpenShift Container Platform 4.8.2 bug fix and security update
    • Red Hat OpenShift Container Platform 4.8 openshift4/driver-toolkit-rhel8, openshift4/egress-router-cni-rhel8, openshift4/network-tools-rhel8 +47

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Logging Subsystem for Red Hat OpenShiftAffectedNo fix planned: Will not fix
OpenShift Service Mesh 2.0AffectedNo fix yet
Red Hat Ceph Storage 2AffectedNo fix planned: Out of support scope
Red Hat Ceph Storage 3AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat OpenShift Container Platform 4AffectedNo fix yet
Red Hat OpenShift Container Platform Assisted Installer 1AffectedNo fix yet
Red Hat Openshift Container Storage 4AffectedNo fix yet
OpenShift Logging 5.3Fixed RHSA-2021:4627
Red Hat OpenShift Container Platform 4.8Fixed RHSA-2021:2438
Red Hat OpenShift Container Platform 4.9Fixed RHSA-2021:3759
Not affected: 14 products
  • OpenShift Logging 5.3
  • OpenShift Serverless
  • Red Hat Ceph Storage 4
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat OpenShift Container Platform 4
  • Red Hat OpenShift Container Platform 4.8
  • Red Hat OpenShift Container Platform 4.9
  • Red Hat OpenShift Virtualization 2
  • Red Hat OpenStack Platform 16.1
  • Red Hat OpenStack Platform 16.2
  • Red Hat Openshift Container Storage 4
  • Red Hat Storage 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-33194
  2. 2026-10-03 Alias added: GHSA-83g2-8m93-v3w7

References

Patch 1

Advisory 3

Other 5

Sources

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