MongoDB CVE-2026-73253/73256/73257 Patch Request: TLS Handshake Failure and HTTP Request Smuggling

Vulnerability Overview The webpage screenshot displays patch requests for multiple security vulnerabilities in MongoDB. Specifically, it includes the following three vulnerabilities: 1. CVE-2026-73253: TLS handshake failure caused by excessive use of the external driver's mapping functionality. 2. CVE-2026-73256: An off-by-one error in HTTP/1.1 requests, leading to chunked TE request smuggling. 3. CVE-2026-73257: Request smuggling caused by issues with Content-Length and Transfer-Encoding fields. Impact Scope These vulnerabilities affect MongoDB’s TLS handshake, HTTP/1.1 request processing, and request smuggling issues. The specific impact includes: TLS handshake failures may result in connection interruptions. The off-by-one error in HTTP/1.1 requests may lead to data leakage or request smuggling. Issues with Content-Length and Transfer-Encoding fields may lead to request smuggling, potentially causing data leakage or system compromise. Remediation The patch requests mention specific remediation steps, but no actual code is provided. Typical remediation measures include: 1. CVE-2026-73253: Fix the TLS handshake failure issue to ensure the correctness and security of the TLS handshake process. 2. CVE-2026-73256: Fix the off-by-one error in HTTP/1.1 requests to ensure correct request processing. 3. CVE-2026-73257: Fix issues with Content-Length and Transfer-Encoding fields to prevent request smuggling. POC Code or Exploit Code No specific POC code or exploit code was provided on the page. Summary The webpage screenshot details three security vulnerabilities in MongoDB, along with their impact scope and remediation measures. The specific vulnerabilities include TLS handshake failures, an off-by-one error in HTTP/1.1 requests, and request smuggling issues. The remediation measures aim to resolve these problems, ensuring system security and stability.

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MongoDB CVE-2026-73253/73256/73257 Patch Request: TLS Handshake Failure and HTTP Request Smuggling

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