CVE-2026-112366CWE-1333

CVE-2026-112366

High · published October 19, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
26.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00339 · 26.1th percentile
Weakness
CWE-1333 · Inefficient Regular Expression Complexity
Published
2026-10-19T20:17Z
References (3)
https://github.com/micromatch/picomatch/blob/4.0.7/lib/parse.js#L287-L307 · [email protected]https://github.com/micromatch/picomatch/pull/194 · [email protected]https://www.vulncheck.com/advisories/picomatch-through-4.0.7-redos-via-single-branch-repeated-extglob-patterns · [email protected]
EPSS history
Timeline
  • 21 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 19 OCT 15:29Z
    Picomatch through 4.0.7 ReDoS via single-branch repeated extglob patterns
    cvelistv5
  • 19 OCT 15:29Z
    Picomatch through 4.0.7 ReDoS via single-branch repeated extglob patterns
    cvelistv5