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No exploitation reportedFix availableAwaiting NVD analysis

CVE-2026-119618

Apache HTTP Server: mod_http2: heap corruption and RCE in assign_headers

No exploitation reported by the sources we read.

  • Published2026-11-11
  • WeaknessCWE-362

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

Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.70. Affected releases of mod_h2 from GitHub: from 2.0.8 through 2.0.42.

Timeline

dates in UTC
  1. 2026-11-1114:54CVE publishedCNA

Versions per branch

Products declared by the CNA1 product

As apache, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Apache Software Foundation Apache HTTP Serverother versions: not affected
    Affected
    • ≥ 2.4.55, ≤ 2.4.70no fix statedsemver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-11

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.

Packages

  • apache2Wolfiall versions · fixed in 2.4.71-r0
  • apache2Echoall versions · fixed in 2.4.69-1~deb13u1+e2
  • apache2Debian:14all versions · no fixed version listed
  • apache2Debian:13all versions · fixed in 2.4.71-1~deb13u1
  • apache2Debian:12all versions · no fixed version listed
  • apache2Chainguardall versions · fixed in 2.4.71-r0
  • apache2Alpine:v3.24all versions · fixed in 2.4.71-r0
  • apache2Alpine:v3.23all versions · fixed in 2.4.71-r0

2 more package ranges on OSV.dev

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2026-11-11
Last Modified
2026-11-12
NVD status
Awaiting Analysis
GitHub Advisory
GHSA-hjhf-gpg9-qqfj

Frequently asked questions

What is CVE-2026-119618?

Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.70. Affected releases of mod_h2 from GitHub: from 2.0.8 through 2.0.42.

Is CVE-2026-119618 actively exploited?

Active exploitation of CVE-2026-119618 has not been confirmed.

What is the CVSS score for CVE-2026-119618?

CVE-2026-119618 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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