CVE-2026-25577

Emmett has an Unhandled CookieError Exception Causing Denial of Service

State: Published
Severity: 7.5 High
Published: Feb 10, 2026
Updated: Feb 11, 2026
Reserved: Feb 3, 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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	GitHub_M

Weaknesses

CWE-248 Uncaught Exception
CWE-307 Improper Restriction of Excessive Authentication Attempts

Affected Products

Product	Versions
coreemmett-framework	< 1.3.11Affected

References

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