CVE-2026-103088
highHandlebars.java before 4.5.5 allows directory traversal.
Handlebars.java before 4.5.5 allows directory traversal. In handlebars-springmvc 4.5.3 and 4.5.4, the path-containment fix for CVE-2026-63490 validates template locations as raw percent-encoded strings, whereas the template file is opened through a URL handler that percent-decodes the path. In a Spring MVC application with a file: template prefix and a request-derived view name, a percent-encoded traversal such as %2e%2e/ bypasses both the view-resolver check and the loader-side containment and reads files outside the configured template base directory.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/jknack/handlebars.java/commit/f6ae3979917d05bef07f00befb4013ef00503660 cve@mitre.org
- https://github.com/jknack/handlebars.java/releases/tag/v4.5.5 cve@mitre.org
- https://github.com/jknack/handlebars.java/security/advisories/GHSA-pvrx-3g7m-fpgv cve@mitre.org
- https://github.com/jknack/handlebars.java/security/advisories/GHSA-pvrx-3g7m-fpgv 134c704f-9b21-4f2e-91b3-4a467353bcc0