CVE-2026-112366
ReDoS in picomatch <=4.0.7 allows event-loop DoS via crafted extglob patterns
Is CVE-2026-112366 being exploited?
Not confirmed. CVE-2026-112366 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.
How severe is CVE-2026-112366?
CVE-2026-112366 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-112366?
Not known from our data. No patch reference has been recorded for CVE-2026-112366, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-112366 affect?
CVE-2026-112366 affects picomatch <= 4.0.7, Node.js applications using picomatch/micromatch, npm packages depending on picomatch. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-112366?
Upgrade to a patched picomatch release when available; validate/sanitize user-supplied glob patterns.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Exponential regex backtracking from crafted extglobs (e.g., +(*)) blocks Node.js event loop, causing denial of service to affected apps.
Patch when possible
- affected<= 4.0.7
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.