CVE-2019-16786
7.1 · HIGHOverview
CVE-2019-16786 is a high-severity vulnerability affecting agendaless waitress. It was published on December 20, 2019 and has a CVSS 3.1 base score of 7.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Waitress through version 1.3.1 would parse the Transfer-Encoding header and only look for a single string value, if that value was not chunked it would fall through and use the Content-Length header instead. According to the HTTP standard Transfer-Encoding should be a comma separated list, with the inner-most encoding first, followed by any further transfer codings, ending with chunked. Requests sent with: "Transfer-Encoding: gzip, chunked" would incorrectly get ignored, and the request would use a Content-Length header instead to determine the body size of the HTTP message. This could allow for Waitress to treat a single request as multiple requests in the case of HTTP pipelining. This issue is fixed in Waitress 1.4.0.
Remediation
Check the references section for vendor advisories and patches from agendaless. Update waitress to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| agendaless | waitress | >= 0, < 1.3.1 | Affected |
References
Frequently Asked Questions
What is CVE-2019-16786?
CVE-2019-16786 is a high-severity vulnerability affecting agendaless waitress. It was published on December 20, 2019 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2019-16786?
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2019-16786?
Check the references section for vendor advisories and patches from agendaless. Update waitress to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-16786?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-16786 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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