What’s Vulnerable › Vulnerabilities

CVE-2024-38372: Undici vulnerable to data leak when using response.arrayBuffer()

• Severity: low (CVSS 2.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-08 · updated 2026-06-17
• Weakness: CWE-201

Description

Undici is an HTTP/1.1 client, written from scratch for Node.js. Depending on network and process conditions of a `fetch()` request, `response.arrayBuffer()` might include portion of memory from the Node.js process. This has been patched in v6.19.2.

Affected products

• undici: from 6.14.0 before 6.19.2 — fixed in 6.19.2

How to fix

Upgrade to a fixed version: undici 6.19.2. Check the vendor advisory for mitigations.

References

• https://github.com/nodejs/undici/commit/f979ec3204ca489abf30e7d20e9fee9ea7711d36
• https://github.com/nodejs/undici/issues/3328
• https://github.com/nodejs/undici/issues/3337
• https://github.com/nodejs/undici/pull/3338
• https://github.com/nodejs/undici/security/advisories/GHSA-3g92-w8c5-73pq
• https://github.com/nodejs/undici/commit/f979ec3204ca489abf30e7d20e9fee9ea7711d36
• https://github.com/nodejs/undici/issues/3328
• https://github.com/nodejs/undici/issues/3337
• https://github.com/nodejs/undici/pull/3338
• https://github.com/nodejs/undici/security/advisories/GHSA-3g92-w8c5-73pq
• https://security.netapp.com/advisory/ntap-20240828-0009/

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