CVEvulnerability
CVE-2026-8924
9.1 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2026-07-03
- Last modified
- 2026-09-15
- Assigner
- 2499f714-1537-4658-8207-48ae4bb9eae9
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-201
Description
A flaw in curl’s cookie parsing logic allows a malicious HTTP server to set
"super cookies" that bypass the Public Suffix List check. This enables an
attacker-controlled origin to inject cookies that curl subsequently scopes and
transmits to unrelated third-party domains.
Affected configurations
• haxx curl (>= 7.46.0 < 8.21.0)
Related
Weakness · CWE (1)
- CWE-201 Insertion of Sensitive Information Into Sent Data weakness
References
- https://curl.se/docs/CVE-2026-8924.html Patch, Vendor Advisory
- https://curl.se/docs/CVE-2026-8924.json Vendor Advisory
- https://hackerone.com/reports/3733905 Exploit, Issue Tracking, Third Party Advisory
- https://hackerone.com/reports/3733905 Exploit, Issue Tracking, Third Party Advisory