7.5

CVE-2026-27903: isaacs minimatch Inefficient Algorithmic Complexity

CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-27903DEBIAN-CVE-2026-27903CGA-224p-q24f-92w2
Published 26-02-2026Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2026-27903 is a high (CVSS 7.5) Inefficient Algorithmic Complexity vulnerability in isaacs minimatch. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.61%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-V69J-GM3C-WJP9

Timeline

  1. 26-02-2026
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

Description

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, 5.1.8, 4.2.5, and 3.1.3 fix the issue.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.61%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

+0.09 pp

From 0.52% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.61%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Minimatch

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Chainguard115 products
  • actions-runner< 2.332.0-r1
  • airflow-2All versions (No fix recorded)
  • airflow-core-2All versions (No fix recorded)
  • arangodb-3.11< 3.11.14.3-r2
  • arangodb-3.12< 3.12.7.2-r3
Wolfi33 products
  • argo-workflows-ui-3.7< 3.7.13-r2
  • argo-workflows-ui-4.0< 4.0.4-r6
  • code-server< 4.109.2-r0
  • eslint< 10.0.2-r1
  • jupyter-base-notebook< 7.6.3-r2
Debian1 product
  • node-minimatchAll versions (No fix recorded) | < 9.0.7-1
Isaacs1 product
  • minimatch≥ 10.0.0, < 10.2.3 | ≥ 9.0.0, < 9.0.7 | ≥ 8.0.0, < 8.0.6 | ≥ 7.0.0, < 7.4.8 | ≥ 6.0.0, < 6.2.2 | ≥ 5.0.0, < 5.1.8 | ≥ 4.0.0, < 4.2.5 | < 3.1.3
Minimatch_project1 product
  • minimatch< 3.1.3 | ≥ 4.0.0, < 4.2.5 | ≥ 5.0.0, < 5.1.8 | ≥ 6.0.0, < 6.2.2 | ≥ 7.0.0, < 7.4.8 | ≥ 8.0.0, < 8.0.6 | ≥ 9.0.0, < 9.0.7 | ≥ 10.0.0, < 10.2.3
Npm1 product
  • minimatch≥ 10.0.0, < 10.2.3 | ≥ 9.0.0, < 9.0.7 | ≥ 8.0.0, < 8.0.6 | ≥ 7.0.0, < 7.4.8 | ≥ 6.0.0, < 6.2.2 | ≥ 5.0.0, < 5.1.8 | ≥ 4.0.0, < 4.2.5 | < 3.1.3
Ubuntu1 product
  • node-minimatchAll versions (No fix recorded)

7 vendors · 153 products

References

8 links