CVE-2026-25577

HIGH7.5

Emmett has an Unhandled CookieError Exception Causing Denial of Service

Published Feb 10, 2026

Modified 3 weeks ago

Details

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.

References

WEB

https://github.com/emmett-framework/core/commit/9557ea23a27cbadf7774d8bca6bbe4b54fa8a3ec

DETECTION

https://github.com/emmett-framework/core/security/advisories/GHSA-x6cr-mq53-cc76

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-25577

CVSS Analysis

CVSS v3.1

7.5

Exploitability

Attack Vector