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Home / CVE DB / CVE-2026-22036
Standard
Vulnerability Identifier

CVE-2026-22036

2026-01-14
Severity Assessment
3.7
LOW
CVSS v3.x Score
Clinical Analysis (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.

Vector Sequencing

Attack Parameters

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Impact Consequences

Technical Impact

Unchanged
Scope
None
Confidentiality
None
Integrity
Low
Availability
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness Classification

CWE-CWE-770

View CWE Details ↗
Timeline

Time Line

PUBLICATION
14 Jan 2026
Impact Statistics

Key Metrics

CVSS Score
3.7
LOW
Remediation Protocol

Recommended Solution

No automatic solution found. Check vendor references.
Patch Library
No direct patch listed in database.
Recommended Actions for Administrators

Immediate Action Plan

1. Inventory

Identify all affected systems in your infrastructure.

2. Assessment

Assess exposure and criticality for your organization.

3. Mitigation

Apply patches or available workarounds.

4. Verification

Test and confirm effectiveness of applied measures.

Sources & Bibliography
NIST NVD MITRE CVE External Reference ↗ External Reference ↗