What is CVE-2026-25577?

CVE-2026-25577 is a high-severity vulnerability in Emmett-Framework Core, classified under CWE-248. CVSS score: 7.5/10. Published 2026-02-10.

How severe is CVE-2026-25577?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Emmett-Framework Core

CVE-2026-25577

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.

EPSS: 0.003 (19.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Emmett-framework Core — versions < 1.3.11

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-25577?: CVE-2026-25577 is a high-severity vulnerability in Emmett-Framework Core, classified under CWE-248. CVSS score: 7.5/10. Published 2026-02-10.
How severe is CVE-2026-25577?: High severity. CVSS v3 base score is 7.5 out of 10.