CVE-2026-25577

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Emmett is a framework designed to simplify your development process. Prior to 1.3.11, the cookies property in mmett_core.http.wrappers.Request does not handle CookieError exceptions when parsing malformed Cookie headers. This allows unauthenticated attackers to trigger HTTP 500 errors and cause denial of service. This vulnerability is fixed in 1.3.11.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-248 CWE-307

Affected software

No affected versions have been published.

Timeline

Published: Feb 10, 2026
Last modified: Jun 17, 2026
NVD status: Deferred

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