{"id":"CVE-2026-103088","title":"Handlebars.java before 4.5.5 allows directory traversal","summary":"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 opene…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-24"],"vendor":"jknack","product":"handlebars.java","affected":["handlebars.java >= 4.5.3 < 4.5.5"],"published":"2026-09-30","updated":"2026-09-30","sourceUpdated":"2026-09-30T02:16:57.340","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103088","references":[{"url":"https://github.com/jknack/handlebars.java/commit/f6ae3979917d05bef07f00befb4013ef00503660","label":"cve@mitre.org"},{"url":"https://github.com/jknack/handlebars.java/releases/tag/v4.5.5","label":"cve@mitre.org"},{"url":"https://github.com/jknack/handlebars.java/security/advisories/GHSA-pvrx-3g7m-fpgv","label":"cve@mitre.org"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-30T01:54:42.730Z","slug":"CVE-2026-103088","body":"## Overview\n\nHandlebars.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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}