🛡️ CVE-2026-33938 on npm (Root.io) — handlebars

🟠 CVSS 8.0 — High ✅ No Known Exploit OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-33938 in @rootio/handlebars - Patched by Root

Root has patched CVE-2026-33938 in the @rootio/handlebars package for Root:npm. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2026-33938 as tracked by npm (Root.io), for the package handlebars. The fix is available in version 4.7.7-root.io.3; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

ROOT-APP-NPM-CVE-2026-33938 is recorded against 2 packages.

  • @rootio/handlebars (fixed in 4.7.7-root.io.3)
  • handlebars (fixed in 4.7.7-aikido.3)

Timeline and source

Published on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

CVE-2026-33938 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-06-17
Updated 2026-08-12
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
@rootio/handlebars — 4.7.7-root.io.3
handlebars — 4.7.7-aikido.3

References

N/A

Site Security Check

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