CVE-2026-22036

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Source
https://cve.org/CVERecord?id=CVE-2026-22036
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22036.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-22036
Aliases
Downstream
Related
Published
2026-01-14T19:07:13.745Z
Modified
2026-01-24T05:49:58.115435Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Undici has an unbounded decompression chain in HTTP responses on Node.js Fetch API via Content-Encoding leads to resource exhaustion
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-770"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22036.json"
}
References

Affected packages

Git / github.com/nodejs/undici

Affected ranges

Type
GIT
Repo
https://github.com/nodejs/undici
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
fbc31e21d7e1dffea61166ab7a827f74b6483d26
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "6.23.0"
        }
    ]
}
Type
GIT
Repo
https://github.com/nodejs/undici
Events
Introduced
1cfe0949053aac6267f11b919cee9315a27f1fd6
Fixed
7e5cb2d7468633b48679627061d696a0bb45f651
Database specific 
{
    "versions": [
        {
            "introduced": "7.0.0"
        },
        {
            "fixed": "7.18.2"
        }
    ]
}

Affected versions

v1.*

v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.1.0
v1.2.0
v1.2.1
v1.2.2
v1.2.5
v1.2.6
v1.3.0
v1.3.1

v2.*

v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.0.4
v2.0.5
v2.0.6
v2.0.7
v2.1.0

v3.*

v3.0.0
v3.1.0
v3.2.0
v3.3.0
v3.3.1

v4.*

v4.0.0
v4.0.0-alpha.0
v4.0.0-alpha.1
v4.0.0-alpha.2
v4.0.0-alpha.4
v4.0.0-alpha.5
v4.0.0-rc.1
v4.0.0-rc.2
v4.0.0-rc.3
v4.0.0-rc.4
v4.0.0-rc.5
v4.0.0-rc.7
v4.0.0-rc.8
v4.1.0
v4.1.1
v4.10.0
v4.10.1
v4.10.2
v4.10.3
v4.10.4
v4.11.0
v4.11.1
v4.11.2
v4.11.3
v4.12.0
v4.12.2
v4.13.0
v4.14.0
v4.14.1
v4.15.0
v4.15.1
v4.16.0
v4.2.1
v4.2.2
v4.3.0
v4.3.1
v4.4.1
v4.4.2
v4.4.3
v4.4.4
v4.4.5
v4.4.6
v4.4.7
v4.5.0
v4.5.1
v4.6.0
v4.7.0
v4.7.1
v4.7.2
v4.7.3
v4.8.0
v4.8.1
v4.8.2
v4.9.0
v4.9.1
v4.9.2
v4.9.3
v4.9.4
v4.9.5

v5.*

v5.0.0
v5.1.0
v5.1.1
v5.10.0
v5.11.0
v5.12.0
v5.13.0
v5.14.0
v5.15.0
v5.15.1
v5.15.2
v5.16.0
v5.17.0
v5.17.1
v5.18.0
v5.19.0
v5.19.1
v5.2.0
v5.20.0
v5.21.0
v5.21.1
v5.21.2
v5.22.0
v5.22.1
v5.23.0
v5.23.4
v5.24.0
v5.25.0
v5.25.1
v5.25.2
v5.25.3
v5.26.0
v5.26.1
v5.26.2
v5.26.3
v5.26.4
v5.26.5
v5.27.0
v5.27.1
v5.27.2
v5.28.0
v5.28.1
v5.28.2
v5.3.0
v5.4.0
v5.5.0
v5.5.1
v5.6.0
v5.6.1
v5.7.0
v5.8.0
v5.8.1
v5.8.2
v5.9.1

v6.*

v6.0.0
v6.0.1
v6.1.0
v6.10.0
v6.10.1
v6.10.2
v6.11.0
v6.11.1
v6.12.0
v6.13.0
v6.14.0
v6.14.1
v6.15.0
v6.16.0
v6.16.1
v6.17.0
v6.18.0
v6.18.1
v6.18.2
v6.19.0
v6.19.1
v6.19.2
v6.19.3
v6.19.4
v6.19.5
v6.19.6
v6.19.7
v6.19.8
v6.2.0
v6.2.1
v6.20.0
v6.20.1
v6.21.0
v6.21.1
v6.21.2
v6.21.3
v6.22.0
v6.3.0
v6.4.0
v6.5.0
v6.6.0
v6.6.1
v6.6.2
v6.7.0
v6.7.1
v6.8.0
v6.9.0

v7.*

v7.0.0
v7.1.0
v7.1.1
v7.10.0
v7.11.0
v7.12.0
v7.13.0
v7.14.0
v7.15.0
v7.16.0
v7.17.0
v7.18.0
v7.18.1
v7.2.0
v7.2.1
v7.2.2
v7.2.3
v7.3.0
v7.4.0
v7.5.0
v7.6.0
v7.7.0
v7.8.0
v7.9.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22036.json"