CVE-2026-25577

Emmett has an Unhandled CookieError Exception Causing Denial of Service

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.

Affected

emmett-framework · core

CVSS v3.1 GITHUB

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

EPSS

0.54% chance of exploitation in the next 30 days, 44th percentile

Published

2026-02-10

Updated

2026-02-11

Proof-of-concept exploits (1)

• advisories/GHSA-x6cr-mq53-cc76

References

• CVE Record
• NVD entry