Node.js Permission Model bypass via process.report.writeReport() path misvalidation
CVE-2026-48617 is a low-severity flaw in Node.js Permission Model enforcement affecting the supported 22.x, 24.x, and 26.x release lines. The vulnerability is described as a bypass through process.report.writeReport() caused by path misvalidation. Under affected configurations, Node.js incorrectly validates the target path used by process.report.writeReport(), allowing the Permission Model security boundary to be bypassed for restricted file paths. The issue is specifically characterized in the available content as a path-validation error in the Permission Model rather than memory corruption or code execution.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
process.report.writeReport() under affected configurations.Mitigation
If you can’t patch tonight, do this now.
process.report.writeReport() is reachable by less-trusted code, and restrict execution of untrusted application code that could invoke this API. Limit filesystem exposure at the OS/container level so that a Permission Model bypass does not grant access to sensitive host paths. These are defensive workarounds; the authoritative mitigation is to upgrade to a fixed Node.js release.Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A low-severity Node.js permission model bypass caused by path misvalidation in process.report.writeReport().
A low-severity Node.js Permission Model bypass caused by path misvalidation.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.