critical9.1
CVE-2026-8924
A flaw in curl’s cookie parsing logic allows a malicious HTTP server to set "super cookies" that bypass the Public Suffix List check.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Haxx | Curl | from 7.46.0 before 8.21.0 |