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VulnerabilityPublished Updated

CVE-2026-95114: Libwebsockets Contains an Out-of-bounds Read Vulnerability

Affects libwebsocketsSource GCVE Database

0
Authoritative record:CVE-2026-95114· High 7.5

Not known to be exploited · CVSS 7.5 High.

Data as of 28 Oct 2026, 22:28 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10libwebsocketspkg:deb/ubuntu/libwebsockets?arch=source&distro=stonkingOther threatsAffected
  • 4.3.5-3ubuntu1 – 4.3.5-7ubuntu1
6 affected builds
Fixed in–
Ubuntu Pro 26.04 LTSlibwebsocketspkg:deb/ubuntu/libwebsockets?arch=source&distro=esm-apps/resoluteOther threatsAffected
  • 4.3.5-1 – 4.3.5-3ubuntu1.2+esm1
5 affected builds
Fixed in–
Ubuntu Pro 24.04 LTSlibwebsocketspkg:deb/ubuntu/libwebsockets?arch=source&distro=esm-apps/nobleOther threatsAffected
  • 4.3.2-4 – 4.3.3-1.1ubuntu0.1~esm3
8 affected builds
Fixed in–
Ubuntu Pro 22.04 LTSlibwebsocketspkg:deb/ubuntu/libwebsockets?arch=source&distro=esm-apps/jammyOther threatsAffected
  • 4.0.20-2 – 4.0.20-2ubuntu1.1+esm2
5 affected builds
Fixed in–
Ubuntu Pro 20.04 LTSlibwebsocketspkg:deb/ubuntu/libwebsockets?arch=source&distro=esm-apps/focalOther threatsAffected
  • 2.0.3-3build1 – 3.2.1-3ubuntu0.1~esm3
5 affected builds
Fixed in–
Ubuntu Pro 18.04 LTSlibwebsocketspkg:deb/ubuntu/libwebsockets?arch=source&distro=esm-apps/bionicOther threatsAffected
  • =2.0.3-3
  • =2.0.3-3build1
  • =2.0.3-3ubuntu0.1~esm1
Fixed in–

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

Description

libwebsockets contains an out-of-bounds read vulnerability in the LEJP incremental parser in lib/misc/lejp.c. This allows a remote attacker to cause a denial of service

References

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