CVE-2026-22036
Last modified
CVE-2026-22036 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. This vulnerability is fixed in 7.18.0 and 6.23.0.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nodejs | Undici | < 6.23.0 |
| Nodejs | Undici | >= 7.0.0, < 7.18.2 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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