CVE-2026-86409
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Oct 20, 2026
Vendor
unknown
Description
Setting `CURLOPT_AWS_SIGV4` to NULL but does not disable SigV4 authentication, contrary to expectations and documentation. A subsequent transfer on the same handle still sends an `Authorization: AWS4-HMAC-SHA256` header to whatever URL isset next, leaking state information.