@logtape/syslog: syslog log injection via unescaped control characters and unvalidated SD-NAME keys

@logtape/syslog contains two related output-encoding bugs in the structured data formatting code. Both only affect deployments with includeStructuredData: true, which is non-default. 1. Unescaped C0 control characters in structured data values escapeStructuredDataValue in...

CVE-2026-54511

@logtape/syslog (part of LogTape, a Node.js logging library) contains two related output-encoding bugs in its structured-data formatting, affecting versions prior to 1.3.11 , 2.0.14 , and 2.1.5 when includeStructuredData is set to true (non-default). The escapeStructuredDataValue() function fails...

EUVD-2026-66563

LogTape is an unobtrusive logging library. Prior to 1.3.11, 2.0.14, and 2.1.5, the @logtape/syslog package's escapeStructuredDataValue function in packages/syslog/src/syslog.ts does not neutralize C0 control characters from U+0000 through U+001F in structured data values, and formatStructuredData...