CVE WatchOct 23, 2026

CVE-2026-106073

A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync()` without the required read permission checks. This is an

CVSS

3.3

Low

EPSS

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KEV

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Exploit Today

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0-100

Published: Oct 23, 2026 · Last modified: Oct 23, 2026 · CWE-284

EPSS · 30d

Not enough EPSS history yet.

Technical description

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**.

Official references

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

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-1060713.6 LOW

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———A flaw in Node.js Permission Model filesystem enforcement can grant access to paths that do not match a wildcard `--allow-fs-read` or `--allow-fs-write` rule. When the requested path is shorter than the prefix of a wildcard grant, the radix tree lookup stops comparing early and treats the path as a match. For example, `--allow-fs-read=/etc/passwd.*` also allows reading `/etc/passwd`. This requires the wildcard grant to sit directly under the root of the permission tree, for example when it is the only grant for that scope. This is a different root cause from CVE-2026-58043. This vulnerability affects Node.js **26.x**.3h CVE-2026-1054827.4 HIG

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——8No description provided2h CVE-2026-1153767.7 HIG

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——7A security vulnerability has been detected in massCodeIO massCode 5.10. Affected is an unknown function of the file src/main/api/index.ts of the component Local HTTP Service. Such manipulation leads to information disclosure. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The name of the patch is d25d8fa3f5a1e34285c8634f18729650c0c05cda. It is advisable to implement a patch to correct this issue.1d CVE-2026-76407—

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——1As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76407 are related to improper access control and are grouped under the Common Weakness Enumeration (CWE) CWE-284.2d