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VulnerabilityPublished Updated

CVE-2026-119618: mod_http2 · heap corruption and RCE in assign_headers

Affects apache2Source GCVE Database

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Authoritative record:CVE-2026-119618· High

Not known to be exploited · fixed in 2.4.41-4ubuntu3.23+esm11 : patch apache2 soon.

Data as of 13 Nov 2026, 14:17 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 2.4.41-4ubuntu3.23+esm11, 2.4.52-1ubuntu4.27, 2.4.58-1ubuntu8.19 +2

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 26.10apache2pkg:deb/ubuntu/apache2?arch=source&distro=stonkingOther threatsAffected
  • <2.4.68-1ubuntu6.2
Fixed in
  • 2.4.68-1ubuntu6.2
Ubuntu 26.04 LTSapache2pkg:deb/ubuntu/apache2?arch=source&distro=resoluteOther threatsAffected
  • <2.4.66-2ubuntu2.8
Fixed in
  • 2.4.66-2ubuntu2.8
Ubuntu 24.04 LTSapache2pkg:deb/ubuntu/apache2?arch=source&distro=nobleOther threatsAffected
  • <2.4.58-1ubuntu8.19
Fixed in
  • 2.4.58-1ubuntu8.19
Ubuntu 22.04 LTSapache2pkg:deb/ubuntu/apache2?arch=source&distro=jammyOther threatsAffected
  • <2.4.52-1ubuntu4.27
Fixed in
  • 2.4.52-1ubuntu4.27
Ubuntu Pro 20.04 LTSapache2pkg:deb/ubuntu/apache2?arch=source&distro=esm-infra/focalOther threatsAffected
  • <2.4.41-4ubuntu3.23+esm11
Fixed in
  • 2.4.41-4ubuntu3.23+esm11

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available and should be applied by updating to the fixed package versions provided by Ubuntu. The fixed versions include 2.4.41-4ubuntu3.23+esm11, 2.4.52-1ubuntu4.27, 2.4.58-1ubuntu8.19, 2.4.66-2ubuntu2.8, and 2.4.68-1ubuntu6.2. Users should follow the Ubuntu security notice USN-9090-1 for update instructions. No additional mitigation is required beyond applying the official updates.

Description

A heap corruption vulnerability exists in the Apache HTTP Server mod_http2 module's assign_headers function. This flaw can lead to remote code execution (RCE) or cause the server to crash, resulting in denial of service. The issue affects multiple Ubuntu package versions of Apache HTTP Server. Fixed versions have been released by Ubuntu.

References

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