CVE-2026-18924

Public on 2026-09-04

Modified on 2026-09-04

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.

Severity

Medium

See what this means

CVSS v3 Base Score

4.8

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Core	curl	Pending Fix
Amazon Linux 2023	curl	Pending Fix
Amazon Linux 2027 Preview	curl	Pending Fix

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	4.8	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-18924 Mitre: CVE-2026-18924