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Threats Tagged 'cve-2026-59921'

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Active filters (1):Tag: cve-2026-59921

Threats Tagged 'cve-2026-59921'

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Io.netty:netty codec http: Netty: CRLF Injection via Multipart Filename in Netty HttpPostRequestEncoder (CVE-2026-59921)CVE-2026-59921
0

CVE-2026-59921 is a CRLF injection vulnerability in Netty's HttpPostRequestEncoder component affecting versions 4.2.12.Final and earlier with codec-http multipart. The vulnerability arises because user-controlled filenames are directly concatenated into Content-Disposition MIME headers without validation or sanitization of CRLF characters. This allows attackers who can control uploaded filenames to inject arbitrary MIME headers, potentially leading to MIME header injection, content-type spoofing, and cross-site scripting (XSS) attacks. The vulnerability requires low privileges and no user interaction, with a network attack vector. No patch status is provided in the data.

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