CVE-2026-112366

Picomatch through 4.0.7 ReDoS via single-branch repeated extglob patterns

Published Oct 19, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Micromatch
Micromatch picomatch
Vendors & Products Micromatch
Micromatch picomatch
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Picomatch through 4.0.7 ReDoS via single-branch repeated extglob patterns
First Time appeared Jonschlinkert
Jonschlinkert picomatch
Weaknesses CWE-1333
CPEs cpe:2.3:a:jonschlinkert:picomatch:*:*:*:*:*:*:*:*
Vendors & Products Jonschlinkert
Jonschlinkert picomatch
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 19, 2026, 4:40 PM
Reserved
Oct 19, 2026, 3:20 PM
Status
Awaiting Analysis
Published
Oct 19, 2026, 4:17 PM
Modified
Oct 19, 2026, 9:13 PM
Severity
Important
Public date
Oct 19, 2026, 3:29 PM