Out-of-bounds read in libwebsockets LEJP parser
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
libwebsockets contains an out-of-bounds read in the LEJP incremental parser in lib/misc/lejp.c (CWE-125). A remote attacker without privileges or user interaction can cause a denial of service.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
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
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for libwebsockets. Red Hat lists A-MQ Interconnect 1 as affected, with no fix available.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| A-MQ Interconnect 1 | Affected | No fix yet |
Not affected: 3 products
- Red Hat OpenStack Platform 16.2
- Red Hat OpenStack Platform 17.1
- Red Hat Service Interconnect 2
Timeline
- 2026-10-13 Threatist record created from CVE-2026-95114
- 2026-10-13 Alias added: GHSA-cf7h-w57m-f768
- 2026-10-13 CVSS score added · CISA ADP
- 2026-10-13 Weakness changed · CISA ADP
- 2026-10-13 CISA SSVC decision points changed
- 2026-10-13 Priority changed: LOW → HIGH
- 2026-10-15 Affected versions changed · Red Hat
- 2026-10-15 CVSS score added · Red Hat
- 2026-10-18 Affected versions changed · Red Hat
- 2026-11-03 Affected versions changed · Red Hat
References
Other 4
- https://github.com/warmcat/libwebsockets/issues/3664
- https://github.com/warmcat/libwebsockets/commit/736a4a26fce344766bc6618df87bf32193829dd0
- https://github.com/warmcat/libwebsockets/commit/c404a205a98323a7f60e69fae532c5d26bf4a62a
- https://gist.github.com/1820893135-pixel/34d3bc35f74eb0807e73b1df3f15af42
Sources
- CVE-2026-95114 · CVE Program
- CVE-2026-95114 · NVD
- FIRST EPSS
- GHSA-cf7h-w57m-f768 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-95114 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences