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Vulnerabilities

Vulnerability · CVE-2026-27904

minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects.

Published Feb 26, 2026 · catalog updated Jun 17, 2026 · Red Hat

Check if you run it

No confirmed exploitation is on record for CVE-2026-27904. EPSS is 0.52%. Act only if a listed version of Red Hat is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.52%
Remediation
Advisory link
Affected products
cpe minimatch project/minimatch

minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects. Prior to version 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.4, nested extglobs produce regexps with nested unbounded quantifiers (e.g. ), which exhibit catastrophic backtracking in V8. With a 12-byte pattern and an 18-byte non-matching input, stalls for over 7 seconds. Adding a single nesting level or a few input characters pushes this to minutes. This is the most severe finding: it is triggered by the default API with no special options, and the minimum viable pattern is only 12 bytes. The same issue affects extglobs equally. Versions 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.4 fix the issue.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe minimatch project/minimatchversion unspecified

How to fix CVE-2026-27904

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-27904. EPSS is 0.52%. Act only if a listed version of Red Hat is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-1333: Inefficient Regular Expression Complexity. EPSS 0.52%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 26, 2026 · NIST NVD

    Detected

    minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects. Prior to version 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.4, nested extglobs produce regexps with nested unbounded quantifiers (e.g. ), which exhibit catastrophic backtracking in V8. With a 12-byte pattern and an 18-byte non-matching input, stalls for over 7 seconds. Adding a si

  2. Jun 17, 2026 · NIST NVD

    Updated

    minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects. Prior to version 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.4, nested extglobs produce regexps with nested unbounded quantifiers (e.g. ), which exhibit catastrophic backtracking in V8. With a 12-byte pattern and an 18-byte non-matching input, stalls for over 7 seconds. Adding a si

Sources

  • CSAF AdvisoriesVendor advisoryRHSA-2026:9711:CVE-2026-27904

    A flaw was found in minimatch. A remote attacker could exploit this vulnerability by providing a specially crafted glob expression with nested unbounded quantifiers. This could lead to catastrophic backtracking in the V8 JavaScript engine, causing the application to become unresp

    security.access.redhat.com
  • CSAF AdvisoriesVendor advisoryRHSA-2026:9742:CVE-2026-27904

    A flaw was found in minimatch. A remote attacker could exploit this vulnerability by providing a specially crafted glob expression with nested unbounded quantifiers. This could lead to catastrophic backtracking in the V8 JavaScript engine, causing the application to become unresp

    security.access.redhat.com
  • CSAF AdvisoriesVendor advisoryRHSA-2026:9874:CVE-2026-27904

    A flaw was found in minimatch. A remote attacker could exploit this vulnerability by providing a specially crafted glob expression with nested unbounded quantifiers. This could lead to catastrophic backtracking in the V8 JavaScript engine, causing the application to become unresp

    security.access.redhat.com
  • CVE.orgVulnerability recordCVE-2026-27904

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-27904

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2026-27904

    minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects. Prior to version 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.4, nested extglobs produce regexps with nested unbounded quantifiers (e.g. ), wh

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.