CVE-2026-106073

lowpriority · track · 10EPSS 0.002 · 16 %ileexploit · PoCDE

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.24% (16th) EPSS

CVSS 3.3 · low

Is it mine?

30 products

Check your exposure

Who says so?

1 sources

cert_bund

EPSS · scored 2026-10-27

A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync()` without the required read permission checks. This is an incomplete fix of CVE-2026-21715, which only covered `fs.realpathSync.native()`. As a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.

cvss

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

3.3

010

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

v3.03.3lowCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nsecondary · support@hackerone.comexploitability 1.8 · impact 1.4

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284US

exploits (1)

Public proof-of-concept and weaponised exploit code.

CompleTetech-Security/node-cve-2026-106073-checkOffline Node.js evidence checker for CVE-2026-106073: Permission Model realpathSync read bypass. Single-file Python; JSON/CSV/HTML reports; no exploit payloads.PoC · poc_in_github

affected products (30)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Java SEall versionscert_bundDEcpe:/a:oracle:java_se:11.0.33.0.2
Java SEall versionscert_bundDEcpe:/a:oracle:java_se:8u511-b32
Java SEall versionscert_bundDEcpe:/a:oracle:java_se:27.0.1.0.2
Java SEall versionscert_bundDEcpe:/a:oracle:java_se:25.0.5.0.2
Java SEall versionscert_bundDEcpe:/a:oracle:java_se:21.0.13.0.2
Java SEall versionscert_bundDEcpe:/a:oracle:java_se:17.0.21.0.2
Java SEall versionscert_bundDEcpe:/a:oracle:java_se:oracle_graalvm_for_jdk_21.0.13.0.2
Java SEall versionscert_bundDEcpe:/a:oracle:java_se:oracle_graalvm_for_jdk_17.0.21.0.2
Java SEall versionscert_bundDEcpe:/a:oracle:java_se:oracle_graalvm_enterprise_edition_21.3.20.0.2
Java SEall versionscert_bundDEcpe:/a:oracle:java_se:8u511-perf-b32
Microsoft .NETall versionscert_bundDEcpe:/a:microsoft:.net:-
Open Source OpenJDKall versionscert_bundDEcpe:/a:oracle:openjdk:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source Node.js< 22.23.4cert_bundDE
Open Source Node.js< 24.22.1cert_bundDE
Open Source Node.js< 26.12.1cert_bundDE

showing 20 of 30

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-4117Node.js: Mehrere SchwachstellenDeutsch2026-10-21csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Node.js ausnutzen, um einen Denial of Service Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen und um beliebigen Programmcode auszuführen.

sources

Which sources assert this record, and when.

cert_bund NVD CVE.org MITRE

published 2026-10-23modified 2026-10-23

references (1) nvd

External citations — patches, advisories, analysis.

https://nodejs.org/en/blog/vulnerability/october-2026-security-releases

scry

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