CVE-2026-112366

Picomatch through 4.0.7 contains a regular expression denial of service vulnerability that allows attackers to block the event loop by supplying single-branch repeated extglob patterns. Attackers can provide globs like +(*) or +(*a), which analyzeRepeatedExtglob in lib/parse.js skips, causing exponential backtracking against short crafted strings and denying service to Node.js applications.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/micromatch/picomatch/blob/4.0.7/lib/parse.js#L287-L307
https://github.com/micromatch/picomatch/pull/194
https://www.vulncheck.com/advisories/picomatch-through-4.0.7-redos-via-single-branch-repeated-extglob-patterns

Configurations

No configuration.

History

19 Oct 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-19 16:17

Updated : 2026-10-19 21:13

NVD link : CVE-2026-112366

Mitre link : CVE-2026-112366

CVE.ORG link : CVE-2026-112366

JSON object : View

Products Affected

No product.

CWE

CWE-1333

Inefficient Regular Expression Complexity

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