CVE-2026-106073LowLocalRevised 26 Oct

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-re…

MSRC advisory NVD CVE.org

Assessment

Severity: Low
CVSS base score: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Impact: Not stated
EPSS, next 30 days: Not scored yet
Public exploit code: No Nuclei template lists it
Exploitability: Not assessed
Publicly disclosed: No
Customer action: Required: apply the update
Component: Mariner
Weakness: CWE-284: Improper Access Control
Issued by: hackerone
Published: 25 Oct 2026 · October 2026
Last revised: 26 Oct 2026Information published.

CVSS 3.1 base metricsRed raises the risk · green lowers it

Attack vector: LocalAV:L
Attack complexity: LowAC:L
Privileges required: LowPR:L
User interaction: NoneUI:N
Scope: UnchangedS:U
Confidentiality: LowC:L
Integrity: NoneI:N
Availability: NoneA:N

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Open Source Software

1 affected product

azl3 nodejs 24.21.0-1 on Azure Linux 3.0

Page history

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cve-program · CVE-2026-106073

Published

node

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "defaultStatus": "unaffected",
                    "vendor": "nodejs",
                    "product": "node",
                    "versions": [
                        {
                            "version": "22.23.3",
                            "status": "affected",
                            "lessThanOrEqual": "22.23.3",
                            "versionType": "semver"
                        },
                        {
                            "version": "24.22.0",
                            "status": "affected",
                            "lessThanOrEqual": "24.22.0",
                            "versionType": "semver"
                        },
                        {
                            "version": "26.12.0",
                            "status": "affected",
                            "lessThanOrEqual": "26.12.0",
                            "versionType": "semver"
                        }
                    ]
                }