High 7.5Published Sep 30, 2026

CVE-2026-103088Handlebars.java before 4.5.5 allows directory traversal.

Updated under an hour ago (2026-10-19 08:30 UTC)

Does this affect you?

It affects jknack handlebars.java. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.69%, higher than 51% of scored CVEs.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for jknack handlebars.java

Exploited in the last 30 days

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: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-24
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.69% (percentile 51)
Assigned by: mitre
NVD analysis: Deferred
Record last updated: Sep 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

jknack handlebars.java jknack:handlebars.java (from the name)	from 4.5.3 before 4.5.5	CNA record

References

https://github.com/jknack/handlebars.java/security/advisories/GHSA-pvrx-3g7m-fpgv
https://github.com/jknack/handlebars.java/commit/f6ae3979917d05bef07f00befb4013ef00503660
https://github.com/jknack/handlebars.java/releases/tag/v4.5.5

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.