Handlebars.java: Arbitrary file read in `SpringTemplateLoader` via URL-fragment suffix bypass

Date Sep 2, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product Maven ยท com.github.jknack:handlebars-springmvc
CVE CVE-2026-63490
High-risk advisory CVE-2026-63490

Summary

Handlebars.java: Arbitrary file read in `SpringTemplateLoader` via URL-fragment suffix bypass

Why it matters

GitHub has published a reviewed security advisory for com.github.jknack:handlebars-springmvc. Prioritize it with other application dependency updates, especially because EPSS places it in the 39% percentile.

Operator check

Check whether com.github.jknack:handlebars-springmvc is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.5%; percentile: 39%.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.