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High, CVSS 7.5

golang.org/x/net/http2 Denial of Service vulnerability

CVE-2022-27664GHSA-69cg-p879-7622

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (golang.org/x/net 0.0.0-20220906165146-f3363e06e74c; golang.org/x/net/http2 0.0.0-20220906165146-f3363e06e74c), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • Go golang.org/x/net

    Affected
    < 0.0.0-20220906165146-f3363e06e74c
    Fixed in
    0.0.0-20220906165146-f3363e06e74c

  • Go golang.org/x/net/http2

    Affected
    < 0.0.0-20220906165146-f3363e06e74c
    Fixed in
    0.0.0-20220906165146-f3363e06e74c

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
  • CVE-2022-27664: 3.49% estimated exploitation activity in the next 30 days; percentile 89.15 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

In net/http in Go before 1.18.6 and 1.19.x before 1.19.1, attackers can cause a denial of service because an HTTP/2 connection can hang during closing if shutdown were preempted by a fatal error.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-69cg-p879-7622

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2022-27664

Advisory: golang.org/x/net/http2 Denial of Service vulnerability
IDs: CVE-2022-27664, GHSA-69cg-p879-7622
Record: https://patchnext.com/advisories/cve-2022-27664 (revision 1, source checked 26 Oct 2026, 15:04 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: golang.org/x/net 0.0.0-20220906165146-f3363e06e74c; golang.org/x/net/http2 0.0.0-20220906165146-f3363e06e74c. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go golang.org/x/net: affected < 0.0.0-20220906165146-f3363e06e74c; fixed in 0.0.0-20220906165146-f3363e06e74c
- Go golang.org/x/net/http2: affected < 0.0.0-20220906165146-f3363e06e74c; fixed in 0.0.0-20220906165146-f3363e06e74c

## Suggested inspection (read-only)
- Go golang.org/x/net: check the installed version with your package manager.
- Go golang.org/x/net/http2: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on golang.org/x/net, golang.org/x/net/http2.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-69cg-p879-7622 (GitHub-reviewed advisory GHSA-69cg-p879-7622 lists affected ranges: Go golang.org/x/net >=0 =0 <0.0.0-20220906165146-f3363e06e74c)

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