CVE catalog
CVE-2023-23936
node-undici: CVE-2023-23936
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.13% · Oct 27, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | node-undici | sid | 8.12.2+dfsg+~cs3.2.3-2 | fixed |
| Debian | node-undici | forky | 8.10.2+dfsg+~cs3.2.2-1 | fixed |
| Debian | node-undici | trixie | 7.3.0+dfsg1+~cs24.12.11-1 | fixed |
| Debian | node-undici | bookworm | 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4 | fixed |
| Debian | node-undici | bookworm-security | 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3 | fixed |
| Alpine | nodejs | 3.15 | 16.19.1-r0 | fixed |
| Alpine | nodejs | 3.16 | 16.19.1-r0 | fixed |
| Alpine | nodejs | 3.17 | 18.14.1-r0 | fixed |
| Alpine | nodejs | 3.18 | 18.14.1-r0 | fixed |
| Alpine | nodejs | 3.19 | 18.14.1-r0 | fixed |
| Alpine | nodejs | 3.20 | 18.14.1-r0 | fixed |
| Alpine | nodejs | 3.21 | 18.14.1-r0 | fixed |
| Alpine | nodejs | 3.22 | 18.14.1-r0 | fixed |
| Alpine | nodejs | 3.23 | 18.14.1-r0 | fixed |
| Alpine | nodejs | 3.24 | 18.14.1-r0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | node-undici | source | sid | 5.19.1+dfsg1+~cs20.10.9.5-1 | not yet assigned | Not reported | [1031418] |
| Debian | node-undici | source | forky | 5.19.1+dfsg1+~cs20.10.9.5-1 | not yet assigned | Not reported | [1031418] |
| Debian | node-undici | source | trixie | 5.19.1+dfsg1+~cs20.10.9.5-1 | not yet assigned | Not reported | [1031418] |
| Debian | node-undici | source | bookworm | 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1 | not yet assigned | Not reported | [1031418] |
| Alpine | nodejs | apk | 3.15 | 16.19.1-r0 | Not reported | ALPINE-CVE-2023-23936 | Not reported |
| Alpine | nodejs | apk | 3.16 | 16.19.1-r0 | Not reported | ALPINE-CVE-2023-23936 | Not reported |
| Alpine | nodejs | apk | 3.17 | 18.14.1-r0 | Not reported | ALPINE-CVE-2023-23936 | Not reported |
| Alpine | nodejs | apk | 3.18 | 18.14.1-r0 | Not reported | ALPINE-CVE-2023-23936 | Not reported |
| Alpine | nodejs | apk | 3.19 | 18.14.1-r0 | Not reported | ALPINE-CVE-2023-23936 | Not reported |
| Alpine | nodejs | apk | 3.20 | 18.14.1-r0 | Not reported | ALPINE-CVE-2023-23936 | Not reported |
| Alpine | nodejs | apk | 3.21 | 18.14.1-r0 | Not reported | ALPINE-CVE-2023-23936 | Not reported |
| Alpine | nodejs | apk | 3.22 | 18.14.1-r0 | Not reported | ALPINE-CVE-2023-23936 | Not reported |
| Alpine | nodejs | apk | 3.23 | 18.14.1-r0 | Not reported | ALPINE-CVE-2023-23936 | Not reported |
| Alpine | nodejs | apk | 3.24 | 18.14.1-r0 | Not reported | ALPINE-CVE-2023-23936 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [node-llhttp]Fixed
Source package: [node-undici]
Details (4)
8.1.0~5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4· all · bookwormFixed · Fixed:
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1dsa · node-undici · debian · bookworm; dsa · node-undici · debian · 12
8.1.0~5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4· all · bookwormFixed · Fixed:
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1dsa · node-undici · debian · bookworm; dsa · node-undici · debian · 12
8.1.0~5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3· all · bookworm-securityFixed · Fixed:
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1dsa · node-undici · debian · bookworm; dsa · node-undici · debian · 12
8.1.0~5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3· all · bookworm-securityFixed · Fixed:
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1dsa · node-undici · debian · bookworm; dsa · node-undici · debian · 12
- [node-undici]Fixed
Details (4)
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4· all · bookwormFixed · Fixed:
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1dsa · node-undici · debian · bookworm; dsa · node-undici · debian · 12
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4· all · bookwormFixed · Fixed:
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1dsa · node-undici · debian · bookworm; dsa · node-undici · debian · 12
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3· all · bookworm-securityFixed · Fixed:
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1dsa · node-undici · debian · bookworm; dsa · node-undici · debian · 12
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3· all · bookworm-securityFixed · Fixed:
5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1dsa · node-undici · debian · bookworm; dsa · node-undici · debian · 12
[Debian 13 (Trixie)]
- [libllhttp9.2]Fixed
Source package: [node-undici]
Details (2)
9.2.1~7.3.0+dfsg1+~cs24.12.11-1· amd64 · trixieFixed · Fixed:
5.19.1+dfsg1+~cs20.10.9.5-1dsa · node-undici · debian · 13
9.2.1~7.3.0+dfsg1+~cs24.12.11-1· arm64 · trixieFixed · Fixed:
5.19.1+dfsg1+~cs20.10.9.5-1dsa · node-undici · debian · 13
- [libllhttp-dev]Fixed
Source package: [node-undici]
Details (2)
9.2.1~7.3.0+dfsg1+~cs24.12.11-1· amd64 · trixieFixed · Fixed:
5.19.1+dfsg1+~cs20.10.9.5-1dsa · node-undici · debian · 13
9.2.1~7.3.0+dfsg1+~cs24.12.11-1· arm64 · trixieFixed · Fixed:
5.19.1+dfsg1+~cs20.10.9.5-1dsa · node-undici · debian · 13
- [node-llhttp]Fixed
Source package: [node-undici]
Details (2)
9.2.1~7.3.0+dfsg1+~cs24.12.11-1· all · trixieFixed · Fixed:
5.19.1+dfsg1+~cs20.10.9.5-1dsa · node-undici · debian · 13
9.2.1~7.3.0+dfsg1+~cs24.12.11-1· all · trixieFixed · Fixed:
5.19.1+dfsg1+~cs20.10.9.5-1dsa · node-undici · debian · 13
- [node-undici]Fixed
Details (2)
7.3.0+dfsg1+~cs24.12.11-1· all · trixieFixed · Fixed:
5.19.1+dfsg1+~cs20.10.9.5-1dsa · node-undici · debian · 13
7.3.0+dfsg1+~cs24.12.11-1· all · trixieFixed · Fixed:
5.19.1+dfsg1+~cs20.10.9.5-1dsa · node-undici · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2023_1582.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2023-23936]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-23936]
- [https://security-tracker.debian.org/tracker/CVE-2023-23936]
- [https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-23936.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-1424.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]