🛡️ CVE-2026-45149 on npm (Root.io) — brace-expansion

🟡 CVSS 5.0 — Medium ✅ No Known Exploit OSV
5.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-45149 in brace-expansion - Patched by Root

Root has patched CVE-2026-45149 in the brace-expansion package for Root:npm. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2026-45149 as tracked by npm (Root.io), for the package brace-expansion. The fix is available in version 5.0.6-root.io.3; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

ROOT-APP-NPM-CVE-2026-45149 is recorded against 2 packages.

  • @rootio/brace-expansion (fixed in 5.0.6-root.io.3)
  • brace-expansion (fixed in 5.0.6-aikido.3)

Timeline and source

Published on 16 June 2026 and last revised on 9 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

CVE-2026-45149 on other distributions

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

Details

Severity MEDIUM
CVSS Score 5.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-06-16
Updated 2026-08-12
Modified 2026-08-09
Fix URL N/A

Affected Packages

Software From version Fixed in
@rootio/brace-expansion — 5.0.6-root.io.3
brace-expansion — 5.0.6-aikido.3

References

N/A

Vulnerability Monitoring

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