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TI-2022-16375 Aliases CVE-2022-35948GHSA-f772-66g8-q5h3

CRLF Injection in Nodejs ‘undici’ via Content-Type

Priority MEDIUM 63CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Partial Red Hat: 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.

Summary

undici is an HTTP/1.1 client, written from scratch for Node.js.`=< [email protected]` users are vulnerable to _CRLF Injection_ on headers when using unsanitized input as request headers, more specifically, inside the `content-type` header. Example: ``` import { request } from 'undici' const unsanitizedContentTypeInput = 'application/json\r\n\r\nGET /foo2 HTTP/1.1' await request('http://localhost:3000, { method: 'GET', headers: { 'content-type': unsanitizedContentTypeInput }, }) ``` The above snippet will perform two requests in a single `request` API call: 1) `http://localhost:3000/` 2) `http://localhost:3000/foo2` This issue was patched in Undici v5.8.1. Sanitize input when sending content-type headers using user input as a workaround.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01391 72nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial undici (npm): 5.8.2Red Hat: 1 advisoryRed Hat: 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NodeJSundici=< 5.8.0—No fix listedCNA
—undici (npm)before 5.8.25.8.2Patch availableGHSA-f772-66g8-q5h3
  • undici VendorNodeJS Affected =< 5.8.0 Fixed in — No fix listed CNA
  • undici (npm) Vendor— Affected before 5.8.2 Fixed in 5.8.2 Patch available GHSA-f772-66g8-q5h3

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*before 5.8.2VulnerableNodeJS
  • cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:* Versions before 5.8.2 Vulnerable ·NodeJS

Remediation

  • Fix · GHSA-f772-66g8-q5h3 undici (npm) Fixed in 5.8.2 Advisory →

Red Hat 1 advisory

  • RHSA-2022:7276 Released 2022-11-01 · Red Hat rating Moderate
    Red Hat Advanced Cluster Management 2.4.8 security fixes and container updates
    • Red Hat Advanced Cluster Management for Kubernetes 2.4 for RHEL 8 rhacm2/acm-grafana-rhel8, rhacm2/acm-must-gather-rhel8, rhacm2/acm-operator-bundle +47

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Advanced Cluster Management for Kubernetes 2AffectedNo fix yet
Red Hat OpenShift Dev SpacesAffectedNo fix yet

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-35948
  2. 2026-10-03 Alias added: GHSA-f772-66g8-q5h3

References

Exploit 1

Patch 1

Advisory 2

Other 1

  • TI-2026-01215 undici is vulnerable to Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') CVSS 3.1CRITICAL 9.8
  • TI-2022-16376 `undici.request` vulnerable to SSRF using absolute URL on `pathname` CVSS 3.1CRITICAL 9.8
  • TI-2023-09734 CRLF Injection in Nodejs ‘undici’ via host CVSS 3.1MEDIUM 6.5
  • TI-2022-13193 CRLF injection in request headers CVSS 3.1MEDIUM 6.5
  • TI-2022-13194 Uncleared cookies on cross-host/cross-origin redirect in undici CVSS 3.1MEDIUM 6.5
  • TI-2024-20007 Undici's fetch with integrity option is too lax when algorithm is specified but hash value is in incorrect CVSS 3.1LOW 3.5
See all 51 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences