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Vulnerabilities & PatchesEmerging1 sourceAug 24, 2026 · 05:00via Zero Day Initiative (Published)

ZDI-26-590: libwebsockets HTTP/2 HPACK Path Header Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

Brief

This vulnerability allows remote attackers to execute arbitrary code on affected installations of libwebsockets. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 9.

  • The following CVEs are assigned: CVE-2026-19773.
Read more on Zero Day Initiative (Published)→
Vulnerabilities & PatchesCVE-2026-19773