CVE-2026-50553
- Source
- https://cve.org/CVERecord?id=CVE-2026-50553
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50553.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-50553
- Aliases
- Downstream
- Related
- Published
- 2026-09-04T17:25:11Z
- Modified
- 2026-09-06T03:46:03Z
- Severity
-
- 8.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Note Mark: Path traversal via unsanitized book/note slug in migrate export (sibling of GHSA-g49p)
- Details
-
Note Mark is an open-source note-taking application. Prior to version 0.19.5, Note Mark validates book and note slug values with the OpenAPI/huma tag pattern:"[a-z0-9-]+". huma compiles this with regexp.MustCompile(s.Pattern) and tests it with patternRe.MatchString(str), an UNANCHORED match. Because the pattern is not anchored (^...$), any string that merely CONTAINS one [a-z0-9-] substring passes validation. A slug such as ../../../../../../tmp/escape is accepted and stored verbatim. The data-export CLI commands (note-mark migrate export and note-mark migrate export-v1) join these unsanitized slugs straight into the output path with path.Join / filepath.Join, then os.MkdirAll the directory and os.Create the note file. path.Join resolves the ../ segments, so the note content file is written OUTSIDE the configured export directory. The export process commonly runs as root (default in Docker / bare-metal admin usage), so this is a root-privilege arbitrary directory create + file write. This issue has been patched in version 0.19.5.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-20", "CWE-22" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50553.json" }- References
-
- https://github.com/enchant97/note-mark/releases/tag/v0.19.5
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50553.json
- https://github.com/enchant97/note-mark/security/advisories/GHSA-rqrh-8wpv-x7hh
- https://nvd.nist.gov/vuln/detail/CVE-2026-50553
- https://github.com/enchant97/note-mark/commit/67b7de04308a858ef27ceff87b514067b6d667e5