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brace-expansion EUVDEUVD-2026-88550

| CVE-2026-102276 HIGH
Uncontrolled Resource Consumption (CWE-400)
2026-09-28 GitHub_M GHSA-6j4f-fj2g-mc7p
Denial Of Service Node.js JavaScript npm Brace Expansion
7.5
CVSS 3.1 · Vendor: GitHub_M
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Severity by source

Vendor (GitHub_M) PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vuln.today AI
7.5 HIGH

Where untrusted patterns reach the parser, a short crafted string reliably crashes the process with no auth or interaction; availability-only, agreeing with the vendor 7.5.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SUSE
5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Red Hat
7.5 HIGH
qualitative

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

6
POC Analysis Generated
Sep 28, 2026 - 23:23 vuln.today
Patch available
Sep 28, 2026 - 22:02 EUVD
Metadata Corrected
Sep 28, 2026 - 21:40 vuln.today
tag: JavaScript added
Metadata Corrected
Sep 28, 2026 - 21:40 vuln.today
tag: npm added
Analysis Generated
Sep 28, 2026 - 21:18 vuln.today
CVE Published
Sep 28, 2026 - 20:50 cve.org
HIGH 7.5

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 2,867 npm packages depend on brace-expansion (65 direct, 2,826 indirect)

Ecosystem-wide dependent count for version 4.0.0.

DescriptionCVE.org

The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.19, 2.1.5, 3.0.7, and 5.0.10, crafted brace patterns can exhaust the native stack in parseCommaParts because parseCommaParts recursively processes the remainder once per brace group and uses push.apply to pass every element of a very large comma-part array as a function argument. Patterns containing many comma-separated brace groups trigger the recursive path, while the large array triggers the argument-array path without deep recursion. These paths cause recursive and argument-array native stack exhaustion before max or maxLength can limit output, potentially terminating the Node.js process in a process-terminating denial of service. This issue is fixed in versions 1.1.19, 2.1.5, 3.0.7, and 5.0.10.

Articles & Coverage 1

News 15 New Node.js Vulnerabilities - 2 Critical, 13 High Severity Sep 29, 2026

AnalysisAI

Stack exhaustion in the npm library brace-expansion (all versions prior to 1.1.19, 2.1.5, 3.0.7, and 5.0.10) lets a crafted brace pattern terminate the Node.js process, a process-terminating denial of service. The flaw is reachable by remote, unauthenticated attackers (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, 7.5) whenever an application passes attacker-controlled strings into expand(), most commonly indirectly through minimatch or glob pattern matching of user-supplied glob or filter expressions. …

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Vulnerability AssessmentAI

Exploitation Exploitation requires that the application pass attacker-controlled strings into brace-expansion's expand() - directly, or indirectly through minimatch/glob pattern matching on untrusted input (e.g. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment All signals point to a genuine but bounded availability issue rather than a critical, high-urgency threat. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade brace-expansion to the patched release on the line in use: 1.1.19, 2.1.5, 3.0.7, or 5.0.10 (see https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-6j4f-fj2g-mc7p). … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, inventory all Node.js applications and services for direct or transitive use of brace-expansion below versions 1.1.19, 2.1.5, 3.0.7, and 5.0.10, focusing on paths that feed user-supplied strings into expand(), minimatch, or glob; block, sanitize, or allowlist untrusted glob/filter/brace patterns at ingress and enforce process-memory/CPU limits with automatic restart. …

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Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise High Performance Computing 12 Not-Affected
SUSE Linux Enterprise Micro 5.3 Affected
SUSE Linux Enterprise Micro 5.3 Affected
SUSE Linux Enterprise Micro 5.3 Affected

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EUVD-2026-88550 vulnerability details – vuln.today
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