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CVE-2026-102276

7.5 · HIGH

The brace-expansion library generates arbitrary strings containing a common prefix and suffix.

Published Sep 28, 2026CWE-400EPSS 0.46%

Overview

CVE-2026-102276 is a high-severity vulnerability. It was published on September 28, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/juliangruber/brace-expansion/commit/0bcbfc0a5928c3073d48f42999d1ce4fc1c42fbcGitHubgithub.com/juliangruber/brace-expansion/commit/316359e6019c39b3254c8ba8e25dc586a480652cGitHubgithub.com/juliangruber/brace-expansion/commit/5171e681c0922b7ae8bfaf9a331e309107be6edcGitHubgithub.com/juliangruber/brace-expansion/commit/6735c94873ca570bcdd6a0690033bdd3126379d3GitHubgithub.com/juliangruber/brace-expansion/security/advisories/GHSA-6j4f-fj2g-mc7p

How CyberStrike helps

Frequently asked questions

What is CVE-2026-102276?

CVE-2026-102276 is a high-severity vulnerability. It was published on September 28, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-102276?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-102276?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-102276?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-102276 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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