VULNERABILITY INTELLIGENCE

CVE-2026-18924

CVSS score9.1 CRITICAL

EPSS probability0.58%

CISA KEVNot currently listed

Published2026-09-06

Last modified2026-09-15

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Description

A flaw in libcurl's handling of HTTP/2 Server Push streams, when the parent handle is set to share connections with other handles, can lead to use-after-free in the cleanup process.

Weakness classification

CWE-416: Use After Free

Primary references

2499f714-1537-4658-8207-48ae4bb9eae9 — Patch, Vendor Advisory
2499f714-1537-4658-8207-48ae4bb9eae9 — Vendor Advisory
2499f714-1537-4658-8207-48ae4bb9eae9 — Exploit, Mitigation, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit, Mitigation, Third Party Advisory