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THREAT OPS › Threat News › [NVD] CVE-2026-8924 (CRITICAL 9.1) — 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.

[NVD] CVE-2026-8924 (CRITICAL 9.1) — 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.

lownvdPublished 2026-07-03

CVE-2026-8924 CVSS: 9.1 CRITICAL Published: 2026-07-03T07:16:24.793

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.

Indicators of compromise

CVE-2026-8924cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-8924