CVE-2026-11856

תיאור (מקור, אנגלית)

Successfully using libcurl to do a transfer to a specific HTTP origin (`hostA`) with **Digest** authentication and then changing the origin to a different one (`hostB`) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the `Authorization:` header field meant for `hostA`, to `hostB`.

מדדים

CVSS 3.1

9.8 (CRITICAL) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — סבירות ניצול

1% (אחוזון 000) נכון ל-15/8/2026

CWE

CWE-294

מוצרים מושפעים

haxx: curl

קישורים

• https://curl.se/docs/CVE-2026-11856.html PatchVendor Advisory
• https://curl.se/docs/CVE-2026-11856.json Vendor Advisory
• https://hackerone.com/reports/3793260 ExploitIssue TrackingThird Party Advisory
• https://hackerone.com/reports/3793260 ExploitIssue TrackingThird Party Advisory