DEBIAN-CVE-2026-123864
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-123864
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123864.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-123864
- Upstream
- CVE-2026-123864
- Published
- 2026-11-11T19:17:32Z
- Modified
- 2026-11-12T07:00:08Z
- Severity
-
- 8.1 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A re-entrancy flaw in Node.js HTTPS lets an unauthenticated client read memory belonging to other connections, including TLS private keys and other users' requests. TLSWrap::DoWrite() calls ClearOut() directly when asked to write zero bytes; if that write is issued from JavaScript running inside the HTTP parser's on_body callback, ClearOut() decrypts the next TLS record while the parser is still mid-body, re-entering llhttp_execute() and causing a use-after-free and an out-of-bounds heap read. The server then copies that freed or unrelated heap memory into the response for the request body. Triggering it requires a handler that calls res.flushHeaders() before the request body ends and later calls res.end() with a non-empty chunk, and reading the leaked memory requires any ordinary route that echoes or stores a request body. Cleartext node:http is not affected. This vulnerability affects Node.js 26.x, 24.x, and 22.x.
- References
Affected packages
Debian:12 / nodejs
Package
- Name
- nodejs
- Purl
- pkg:deb/debian/nodejs?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
18.*
18.13.0+dfsg1-1
18.13.0+dfsg1-1.1
18.19.0+dfsg-1
18.19.0+dfsg-2
18.19.0+dfsg-3
18.19.0+dfsg-4
18.19.0+dfsg-5
18.19.0+dfsg-6~deb12u1
18.19.0+dfsg-6~deb12u2
18.19.0+dfsg-6
18.19.1+dfsg-1
18.19.1+dfsg-2
18.19.1+dfsg-3
18.19.1+dfsg-3.1
18.19.1+dfsg-4
18.19.1+dfsg-6
18.20.1+dfsg-1
18.20.1+dfsg-2
18.20.1+dfsg-3
18.20.1+dfsg-4
18.20.4+dfsg-1~deb12u1
18.20.4+dfsg-1~deb12u2
18.20.4+dfsg-1~deb12u3
20.*
20.10.0+dfsg-1
20.12.2+dfsg-1
20.13.0+dfsg-1
20.13.1+dfsg-1
20.13.1+dfsg-2
20.14.0+dfsg-1
20.14.0+dfsg-2
20.14.0+dfsg-3
20.15.0+dfsg-1
20.15.1+dfsg-1
20.16.0+dfsg-1
20.17.0+dfsg-1
20.17.0+dfsg-2
20.18.0+dfsg-1
20.18.0+dfsg-2
20.18.1+dfsg-1
20.18.1+dfsg-2
20.18.2+dfsg-1
20.18.2+dfsg-2
20.18.2+dfsg-3
20.18.2+dfsg-4
20.18.3+dfsg-1
20.19.0+dfsg-1
20.19.0+dfsg-2
20.19.0+dfsg1-1
20.19.2+dfsg-1
20.19.4+dfsg-1
20.19.5+dfsg+~cs20.19.12-1
20.19.5+dfsg+~cs20.19.12-2
20.19.5+dfsg+~cs20.19.12-3
20.19.5+dfsg+~cs20.19.12-4
20.19.5+dfsg+~cs20.19.24-1
22.*
22.12.0+dfsg-1
22.12.0+dfsg-2
22.12.0+dfsg-3
22.14.0+dfsg-1
22.18.0+dfsg-1
22.18.0+dfsg+~cs22.17.2-1
22.18.0+dfsg+~cs22.17.2-2
22.19.0+dfsg+~cs22.18.0-1
22.21.1+dfsg+~cs22.19.0-1
22.21.1+dfsg+~cs22.19.0-2
22.21.1+dfsg+~cs22.19.0-3
22.21.1+dfsg+~cs22.19.0-4
22.21.1+dfsg+~cs22.19.0-5
22.21.1+dfsg+~cs22.19.0-6
22.22.0+dfsg+~cs22.19.6-1
22.22.0+dfsg+~cs22.19.13-1
22.22.0+dfsg+~cs22.19.13-2
22.22.1+dfsg+~cs22.19.15-1
22.22.2+dfsg+~cs22.19.15-1
22.22.2+dfsg+~cs22.19.15-3
24.*
24.11.1+dfsg+~cs24.10.1-1
24.11.1+dfsg+~cs24.10.1-2
24.12.0+dfsg+~cs24.10.4-1
24.13.0+dfsg+~cs24.10.7-1
24.13.0+dfsg+~cs24.10.7-2
24.14.0+dfsg+~cs24.12.0-1
24.14.0+dfsg+~cs24.12.0-2
24.14.1+dfsg+~cs24.12.0-1
24.15.0+dfsg+~cs24.12.2-1
24.16.0+dfsg+~cs24.13.1-1
24.16.0+dfsg+~cs24.13.1-2
24.17.0+dfsg+~cs24.13.2-1
24.18.0+dfsg+~cs24.13.2-1
24.19.0+dfsg+~cs24.13.3-1
24.20.0+dfsg+~cs24.13.3-1
24.20.0+dfsg+~cs24.13.3-2
24.21.0+dfsg+~cs24.13.4-1
24.22.0+dfsg+~cs24.19.2-1
24.22.0+dfsg+~cs24.19.2-2
24.22.1+dfsg+~cs24.19.2-1
24.22.2+dfsg+~cs24.19.2-1
Debian:13 / nodejs
Package
- Name
- nodejs
- Purl
- pkg:deb/debian/nodejs?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
20.*
20.19.2+dfsg-1
20.19.2+dfsg-1+deb13u1
20.19.2+dfsg-1+deb13u2
20.19.2+dfsg-1+deb13u3
20.19.4+dfsg-1
20.19.5+dfsg+~cs20.19.12-1
20.19.5+dfsg+~cs20.19.12-2
20.19.5+dfsg+~cs20.19.12-3
20.19.5+dfsg+~cs20.19.12-4
20.19.5+dfsg+~cs20.19.24-1
22.*
22.12.0+dfsg-1
22.12.0+dfsg-2
22.12.0+dfsg-3
22.14.0+dfsg-1
22.18.0+dfsg-1
22.18.0+dfsg+~cs22.17.2-1
22.18.0+dfsg+~cs22.17.2-2
22.19.0+dfsg+~cs22.18.0-1
22.21.1+dfsg+~cs22.19.0-1
22.21.1+dfsg+~cs22.19.0-2
22.21.1+dfsg+~cs22.19.0-3
22.21.1+dfsg+~cs22.19.0-4
22.21.1+dfsg+~cs22.19.0-5
22.21.1+dfsg+~cs22.19.0-6
22.22.0+dfsg+~cs22.19.6-1
22.22.0+dfsg+~cs22.19.13-1
22.22.0+dfsg+~cs22.19.13-2
22.22.1+dfsg+~cs22.19.15-1
22.22.2+dfsg+~cs22.19.15-1
22.22.2+dfsg+~cs22.19.15-3
24.*
24.11.1+dfsg+~cs24.10.1-1
24.11.1+dfsg+~cs24.10.1-2
24.12.0+dfsg+~cs24.10.4-1
24.13.0+dfsg+~cs24.10.7-1
24.13.0+dfsg+~cs24.10.7-2
24.14.0+dfsg+~cs24.12.0-1
24.14.0+dfsg+~cs24.12.0-2
24.14.1+dfsg+~cs24.12.0-1
24.15.0+dfsg+~cs24.12.2-1
24.16.0+dfsg+~cs24.13.1-1
24.16.0+dfsg+~cs24.13.1-2
24.17.0+dfsg+~cs24.13.2-1
24.18.0+dfsg+~cs24.13.2-1
24.19.0+dfsg+~cs24.13.3-1
24.20.0+dfsg+~cs24.13.3-1
24.20.0+dfsg+~cs24.13.3-2
24.21.0+dfsg+~cs24.13.4-1
24.22.0+dfsg+~cs24.19.2-1
24.22.0+dfsg+~cs24.19.2-2
24.22.1+dfsg+~cs24.19.2-1
24.22.2+dfsg+~cs24.19.2-1
Debian:14 / nodejs
Package
- Name
- nodejs
- Purl
- pkg:deb/debian/nodejs?arch=source&distro=forky
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
20.*
20.19.2+dfsg-1
20.19.4+dfsg-1
20.19.5+dfsg+~cs20.19.12-1
20.19.5+dfsg+~cs20.19.12-2
20.19.5+dfsg+~cs20.19.12-3
20.19.5+dfsg+~cs20.19.12-4
20.19.5+dfsg+~cs20.19.24-1
22.*
22.12.0+dfsg-1
22.12.0+dfsg-2
22.12.0+dfsg-3
22.14.0+dfsg-1
22.18.0+dfsg-1
22.18.0+dfsg+~cs22.17.2-1
22.18.0+dfsg+~cs22.17.2-2
22.19.0+dfsg+~cs22.18.0-1
22.21.1+dfsg+~cs22.19.0-1
22.21.1+dfsg+~cs22.19.0-2
22.21.1+dfsg+~cs22.19.0-3
22.21.1+dfsg+~cs22.19.0-4
22.21.1+dfsg+~cs22.19.0-5
22.21.1+dfsg+~cs22.19.0-6
22.22.0+dfsg+~cs22.19.6-1
22.22.0+dfsg+~cs22.19.13-1
22.22.0+dfsg+~cs22.19.13-2
22.22.1+dfsg+~cs22.19.15-1
22.22.2+dfsg+~cs22.19.15-1
22.22.2+dfsg+~cs22.19.15-3
24.*
24.11.1+dfsg+~cs24.10.1-1
24.11.1+dfsg+~cs24.10.1-2
24.12.0+dfsg+~cs24.10.4-1
24.13.0+dfsg+~cs24.10.7-1
24.13.0+dfsg+~cs24.10.7-2
24.14.0+dfsg+~cs24.12.0-1
24.14.0+dfsg+~cs24.12.0-2
24.14.1+dfsg+~cs24.12.0-1
24.15.0+dfsg+~cs24.12.2-1
24.16.0+dfsg+~cs24.13.1-1
24.16.0+dfsg+~cs24.13.1-2
24.17.0+dfsg+~cs24.13.2-1
24.18.0+dfsg+~cs24.13.2-1
24.19.0+dfsg+~cs24.13.3-1
24.20.0+dfsg+~cs24.13.3-1
24.20.0+dfsg+~cs24.13.3-2
24.21.0+dfsg+~cs24.13.4-1
24.22.0+dfsg+~cs24.19.2-1
24.22.0+dfsg+~cs24.19.2-2
24.22.1+dfsg+~cs24.19.2-1
24.22.2+dfsg+~cs24.19.2-1