Read the docs
TI-2026-71809 Aliases CVE-2026-95115GHSA-9f4q-6c78-chwx

Buffer overflow in libwebsockets LEJP JSON parser

Priority HIGH 72CWE-787Published · Updated

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. Impact type from CWE-787 and the CVSS impact.

Summary

libwebsockets main 106d542c contains a buffer overflow in its LEJP JSON parser. The flaw is an out-of-bounds write (CWE-787). A remote attacker can cause a denial of service.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

Buffer Overflow vulnerability in libwebsockets main 106d542c allows a remote attacker to cause a denial of service via the LEJP JSON parser

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00548 46th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for libwebsockets.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-95115
  2. 2026-10-13 Alias added: GHSA-9f4q-6c78-chwx
  3. 2026-10-14 CVSS score added · CISA ADP
  4. 2026-10-14 Weakness changed · CISA ADP
  5. 2026-10-14 CISA SSVC decision points changed
  6. 2026-10-14 Priority changed: LOW → HIGH

References

Other 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences