CVE-2026-6276 – stale custom cookie host causes cookie leak

CVE ID :CVE-2026-6276

Published : May 13, 2026, 8:28 a.m. | 3 hours, 29 minutes ago

Description :Using libcurl, when a custom `Host:` header is first set for an HTTP request
and a second request is subsequently done using the same *easy handle* but
without the custom `Host:` header set, the second request would use stale
information and pass on cookies meant for the first host in the second
request. Leak them.

Severity: 0.0 | NA

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