cvedb.io
CVE-2026-59920
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-07-29T18:16:56.757 · Last modified 2026-07-29T18:16:56.757

Summary

Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.136.Final and 4.2.16.Final, Netty's STOMP encoder ( StompSubframeEncoder ) does not escape or validate header values in  CONNECT  and  CONNECTED  frames, so raw newline ( \n ) characters in a header value are written directly to the wire, allowing an attacker who controls a header value to inject additional STOMP headers. This happens because the encoder intentionally skips escaping for CONNECT/CONNECTED frames per the STOMP 1.2 specification but never rejects the raw newlines, and since a broker parses each line as a separate header, an attacker controlling a value such as a user-supplied login or passcode can overwrite connection parameters or add authentication/role headers to bypass authentic

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.