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DEBIAN-CVE-2026-27903

Type: advisorySource: OSV1 source record

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 3.1.3, `matchOne()` performs unbounded recursive backtracking when a glob pattern contains multiple non-adjacent `**` (GLOBSTAR) segments and the input path does not match. The time complexity is O(C(n, k)) -- binomial -- where `n` is the number of path segments and `k` is the number of globstars. With k=11 and n=30, a call to the default `minimatch()` API stalls for roughly 5 seconds. With k=13, it exceeds 15 seconds. No memoization or call budget exists to bound this behavior. Any application where an attacker can influence the glob pattern passed to `minimatch()` is vulnerable. The realistic attack surface includes build tools and task runners that accept user-supplied glob arguments (ESLint, Webpack, Rollup config), multi-tenant systems where one tenant configures glob-based rules that run in a shared process, admin or developer interfaces that accept ignore-rule or filter configuration as globs, and CI/CD pipelines that evaluate user-submitted config files containing glob patterns. An attacker who can place a crafted pattern into any of these paths can stall the Node.js event loop for tens of seconds per invocation. The pattern is 56 bytes for a 5-second stall and does not require authentication in contexts where pattern input is part of the feature. Versions 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-27903

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-27903

node-minimatch

Source reference: /affected/0/package/name

Affected versions
5.1.1+~5.1.2-1

Source reference: /affected/0/versions

9.0.3-1

Source reference: /affected/0/versions

9.0.3-2

Source reference: /affected/0/versions

9.0.3-3

Source reference: /affected/0/versions

9.0.3-4

Source reference: /affected/0/versions

9.0.3-5

Source reference: /affected/0/versions

9.0.3-6

Source reference: /affected/0/versions

9.0.7-1

Source reference: /affected/0/versions

9.0.7-2

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

node-minimatch

Source reference: /affected/1/package/name

Affected versions
9.0.3-6

Source reference: /affected/1/versions

9.0.7-1

Source reference: /affected/1/versions

9.0.7-2

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

node-minimatch

Source reference: /affected/2/package/name

Affected versions
9.0.3-6

Source reference: /affected/2/versions

Fixed versions
9.0.7-1

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "node-minimatch",
      "purl": "pkg:deb/debian/node-minimatch?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "5.1.1+~5.1.2-1",
      "9.0.3-1",
      "9.0.3-2",
      "9.0.3-3",
      "9.0.3-4",
      "9.0.3-5",
      "9.0.3-6",
      "9.0.7-1",
      "9.0.7-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-27903.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "node-minimatch",
      "purl": "pkg:deb/debian/node-minimatch?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "9.0.3-6",
      "9.0.7-1",
      "9.0.7-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-27903.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "9.0.7-1"
          }
        ]
      }
    ],
    "package": {
      "name": "node-minimatch",
      "purl": "pkg:deb/debian/node-minimatch?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "9.0.3-6"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-27903.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56605 · Revision 1
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Publisher date
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