Reference page — cumulative record through Wednesday, October 7, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV N L N N N L L L 5.5 .0040 32.6 —
AFFECTED Product Versions Fixed libwebsockets 4.5.0 – —
TIMELINE Aug 23 Reserved by VulDB Aug 24 EXPLOIT PUBLISHED — CVE-2026-78161 (warmcat libwebsockets). Public exploit reference added. Aug 24 Published (CNA: VulDB)
A vulnerability was found in warmcat libwebsockets 4.5.0. Impacted is the function report_raw_cbor of the file lib/misc/lecp.c of the component LECP CBOR Recording. The manipulation results in out-of-bounds write. The attack can be launched remotely. The exploit has been made public and could be used. The patch is identified as 1d44554a1bb262db63ff4e240152a9deecd99054. It is best practice to apply a patch to resolve this issue.
| Date | Event | Detail |
|---|---|---|
| August 23, 2026 | Reserved | Reserved by VulDB |
| August 24, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-78161 (warmcat libwebsockets). Public exploit reference added. |
| August 24, 2026 | Published | Published (CNA: VulDB) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| warmcat | libwebsockets | — | 4.5.0 | — |
Authoritative record: CVE-2026-78161 at cve.org
Vendors: warmcat
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-78161 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, October 7, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
