CVE-2026-86413

Public on 2026-10-19

Modified on 2026-10-19

Description

When using an ambient user in a first transfer doing Negotiate authentication and asked to follow redirects, curl could pass on its credential details to an unrelated second origin when asked to redirect there.

Severity

Low

See what this means

CVSS v3 Base Score

3.7

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Core	curl	Not Affected
Amazon Linux 2023	curl	Pending Fix
Amazon Linux 2027 Preview	curl	Pending Fix

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-86413 Mitre: CVE-2026-86413