CVE-2026-22036
MEDIUM
GHSA-g9mf-h72j-4rw9
5.9
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Lifecycle Timeline
3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
Patch Released
Jan 22, 2026 - 21:15 nvd
Patch available
CVE Published
Jan 14, 2026 - 19:16 nvd
MEDIUM 5.9
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.
Analysis
Undici versions up to 7.18.0 is affected by allocation of resources without limits or throttling (CVSS 5.9).
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.
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Priority Score
30
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +30
POC: 0
Vendor Status
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External POC / Exploit Code
Leaving vuln.today
Destination URL
POC code from unknown sources may be malicious, contain backdoors, or be fake.
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Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).