Source: node-morgan Version: 1.12.0+~1.9.10-1 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for node-morgan. CVE-2026-87859[0]: | morgan is an HTTP request logger middleware for Node.js. In versions | before 1.12.1, its escapeLogField() function does not escape the | double quote character, which delimits the quoted fields of the | Apache combined log format that morgan emits. An unauthenticated | remote attacker who controls a value written to a quoted field, such | as the User-Agent or Referer header, can include a double quote to | close that field early, so a log consumer that parses the log by | field position reads attacker-supplied text as the following field. | In the built-in formats this makes the recorded value differ from | the value that was sent, and in custom formats that quote an | attacker-controlled token before a server-controlled one it can | forge values such as the response status. No newline is injected, so | record separation stays intact. The issue is fixed in morgan 1.12.1, | which escapes the double quote. Users should upgrade to morgan | 1.12.1 or later. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-87859 https://www.cve.org/CVERecord?id=CVE-2026-87859 [1] https://github.com/expressjs/morgan/security/advisories/GHSA-9f6g-j8ch-79g4 [2] https://github.com/expressjs/morgan/commit/4b695edf967ce179cdf4009fe8cddd184b7511ee Please adjust the affected versions in the BTS as needed. Regards, Salvatore -- Pkg-javascript-devel mailing list [email protected] https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/pkg-javascript-devel
