CVE-2026-6276
PoC —CVSS 3.1
7.5 high
EPSS
<1%p22
Published
()
Modified
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.
- Vendors
- haxx
- Products
- curl
- Weakness
- CWE-346, CWE-319
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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