Node.js Permission Model network restriction bypass via Unix domain socket server
CVE-2026-48936 is a low-severity vulnerability in the Node.js Permission Model affecting the 26.x release line. According to the provided content, the flaw allows a Unix domain socket server to be started under specific conditions even without the --allow-net permission, resulting in a bypass of Node.js network permission restrictions. The issue is described as a Permission API / Permission Model bypass in which Unix domain socket server behavior is not correctly constrained by the --permission / --allow-net network access policy.
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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.
--allow-net, undermining the security boundary intended to prevent network-listening operations. This can weaken sandboxing assumptions and permit unauthorized local IPC exposure.Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Recent activity
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A low-severity Node.js permission restriction bypass allowing Unix domain socket servers to bypass network permission controls under specific conditions.
A low-severity Node.js flaw that bypasses network restrictions via a Unix domain socket server.
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.