CVE-2026-6276

01/תיאור (מקור, אנגלית)

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.

02/מוצרים מושפעים

haxx: curl

03/קישורים5

• curl.se/docs/CVE-2026-6276.html PatchVendor Advisory
• hackerone.com/reports/3671818 ExploitIssue TrackingThird Party Advisory
• hackerone.com/reports/3671818 ExploitIssue TrackingThird Party Advisory
• curl.se/docs/CVE-2026-6276.json Product
• www.openwall.com/lists/oss-security/2026/04/29/13 Mailing ListThird Party Advisory