CVE-2023-23936

mediumpriority · track · 22EPSS 0.011 · 66 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.13% (66th) EPSS

CVSS 5.4 · medium

Is it mine?

46 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

Undici is an HTTP/1.1 client for Node.js. Starting with version 2.0.0 and prior to version 5.19.1, the undici library does not protect `host` HTTP header from CRLF injection vulnerabilities. This issue is patched in Undici v5.19.1. As a workaround, sanitize the `headers.host` string before passing to undici.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedfesto_psirt
FactoryViews (non-Lite): Upgrade to FactoryViews 1.6.0. See the upgrade guide for information on how to upgrade. FactoryViews Lite: Upgrade to FactoryViews 1.7.0. See the upgrade guide for information on how to upgrade.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.5

v3.16.5mediumAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · security-advisories@github.comexploitability 3.9 · impact 2.5

v3.14.6mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:Nsecondary · OSV

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Nsecondary · Festo PSIRT DE

v3.15mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-74USprimaryCWE-113USCWE-74USCWE-74USCWE-74USCWE-93USCWE-93USCWE-93US

affected products (46)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
IBM DB2all versionscert_bundDEcpe:/a:ibm:db2:-
IBM DataPower Gateway <10.0.1.13all versionscert_bundDE
IBM DataPower Gateway <10.5.0.5all versionscert_bundDE
IBM Spectrum Protect plus 10.1all versionscert_bundDEcpe:/a:ibm:spectrum_protect:plus_10.1
Open Source Node.js <14.21.3all versionscert_bundDE
Open Source Node.js <16.19.1all versionscert_bundDE
Open Source Node.js <18.14.1all versionscert_bundDE
Open Source Node.js <19.6.1all versionscert_bundDE
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
IBM DataPower Gateway< 10.0.1.13cert_bundDE
IBM DataPower Gateway< 10.5.0.5cert_bundDE
Open Source Node.js< 14.21.3cert_bundDE
Open Source Node.js< 16.19.1cert_bundDE
Open Source Node.js< 18.14.1cert_bundDE
Open Source Node.js< 19.6.1cert_bundDE

showing 20 of 46

advisories (6)

Vendor and ecosystem advisories describing this.

FSA-202302Festo: Several vulnerabilities in FactoryViews2023-07-10csaf · festo_psirtDE
FactoryViews bundles many third-party applications which are used in background processes to provide the software's features. From time to time, vulnerabilities in these bundled applications are discovered. These are typically fixed in newer versions of FactoryViews by updating the bundled applications. FactoryViews versions up to and including 1.5.2 contain around 200 such vulnerabilities listed in this advisory.Version 1.6.0 is a security rollup release which includes updates to all bundled applications and fixes these vulnerabilities. At this time, FactoryViews Lite cannot be updated beyond version 1.1. FactoryViews 1.7 unifies the non-Lite and Lite versions and fixes these vulnerabilities for users of FactoryViews Lite.
WID-SEC-W-2023-0414Node.js: Mehrere SchwachstellenDeutsch2023-02-16csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Node.js ausnutzen, um Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen und einen Denial-of-Service-Zustand zu verursachen.
WID-SEC-W-2023-1424Xerox FreeFlow Print Server für Solaris: Mehrere SchwachstellenDeutsch2023-06-12csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um die Vertraulichkeit, Verfügbarkeit und Integrität des Systems zu gefährden.
GHSA-5r9g-qh6m-jxffCRLF Injection in Nodejs ‘undici’ via host2023-02-16ghsa · osvUS
### Impact undici library does not protect `host` HTTP header from CRLF injection vulnerabilities. ### Patches This issue was patched in Undici v5.19.1. ### Workarounds Sanitize the `headers.host` string before passing to undici. ### References Reported at https://hackerone.com/reports/1820955. ### Credits Thank you to Zhipeng Zhang ([@timon8](https://hackerone.com/timon8)) for reporting this vulnerability.
BIT-node-2023-23936CRLF Injection in Nodejs ‘undici’ via host2024-03-06vendor · osvUS
Undici is an HTTP/1.1 client for Node.js. Starting with version 2.0.0 and prior to version 5.19.1, the undici library does not protect `host` HTTP header from CRLF injection vulnerabilities. This issue is patched in Undici v5.19.1. As a workaround, sanitize the `headers.host` string before passing to undici.
BIT-node-min-2023-23936CRLF Injection in Nodejs ‘undici’ via host2024-12-16vendor · osvUS
Undici is an HTTP/1.1 client for Node.js. Starting with version 2.0.0 and prior to version 5.19.1, the undici library does not protect `host` HTTP header from CRLF injection vulnerabilities. This issue is patched in Undici v5.19.1. As a workaround, sanitize the `headers.host` string before passing to undici.

also known as (7)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund festo_psirt NVD CVE.org MITRE

published 2023-02-16modified 2026-06-17

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+5979 more

references (18)

External citations — patches, advisories, analysis.

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