Uncaught Exception Affecting emmett-core package, versions [,1.3.11)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-EMMETTCORE-15264150
- published11 Feb 2026
- disclosed10 Feb 2026
- creditgeonwoo-ryu
Introduced: 10 Feb 2026
CVE-2026-25577 (opens in a new tab)How to fix?
Upgrade emmett-core to version 1.3.11 or higher.
Overview
emmett-core is an Emmett framework core libraries
Affected versions of this package are vulnerable to Uncaught Exception in the cookies() function, which does not properly handle CookieError. An attacker can cause HTTP 500 responses and crash by sending malicious Cookie headers.