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No exploitation reportedFix available

CVE-2022-41723

No exploitation reported by the sources we read.

  • Published2023-02-28
  • Fixed in1.19.6

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of service from a small number of small requests.

Timeline

dates in UTC
  1. 2023-02-2818:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-41723?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-41723?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Go
BranchAffectedFixed in
1.19< 1.19.61.19.6
1.20= 1.20.0no fix published
Golang hpack
BranchAffectedFixed in
0.7< 0.7.00.7.0
Golang http2
BranchAffectedFixed in
0.7< 0.7.00.7.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • RHSA-2025:1116 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.13.55 bug fix and security update

  • RHSA-2024:4677 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.12.61 bug fix and security update

  • RHSA-2024:3494 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.13.43 security update

  • RHSA-2024:2944 Red Hat Product Security5 products fixed

    Red Hat Security Advisory: AMQ Broker 7.12.0.OPR.1.GA Container Images release and security update

  • RHSA-2024:0948 Red Hat Product Security92 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.13.35 security update

  • RHSA-2024:0485 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.12.48 bug fix and security update

56 more advisories

Full record on NVD

Fix

  1. Update Go to 1.19.6
  2. Vendor fix Red Hat Product Security RHSA-2025:1116 · 1 productFor OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.13/release_notes/o…
  3. Vendor fix Red Hat Product Security RHSA-2024:4677 · 4 productsFor OpenShift Container Platform 4.12 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.12/release_notes/o…
  4. Vendor fix Red Hat Product Security RHSA-2024:2944 · 5 productsTo update to the latest image please refer to the AMQ container images in the Red Hat Container catalog.
  5. Vendor fix Red Hat Product Security RHSA-2024:0948 · 92 productsFor OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.13/release_notes/ocp-4-1…
  6. Vendor fix Red Hat Product Security RHSA-2024:0198 · 4 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  7. Vendor fix Red Hat Product Security RHSA-2023:7823 · 4 productsFor OpenShift Container Platform 4.12 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.12/release_notes/ocp-4-1…

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2023-02-28
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2022-41723?

A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of service from a small number of small requests.

Is CVE-2022-41723 actively exploited?

Active exploitation of CVE-2022-41723 has not been confirmed. Its EPSS score was 4.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-41723?

CVE-2022-41723 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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