Vulnerability · Published Nov 5, 2026 · Assigned by VulnCheck

CVE-2026-123208noname v1.11.2 through v1.11.6.1 Missing Authentication in Electron Local File Server

High 8.8

In plain English

A high-severity missing authentication in noname from libnoname. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.4%top 68.3% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

noname Electron desktop build v1.11.2 through v1.11.6.1 contains an unauthenticated local file server with wildcard CORS that allows malicious websites to read, overwrite, or delete installation files. Attackers can send cross-origin requests to /writeFile on localhost port 8089 to overwrite renderer scripts, executing JavaScript with Node.js access as the local user.

Affected products (as reported)

Vendor	Product	Versions
libnoname	noname	v1.11.2 – through v1.11.6.1

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://github.com/libnoname/noname/issues/4524 issue-tracking
https://github.com/libnoname/noname/pull/4606 patch, issue-tracking
https://github.com/libnoname/noname/commit/b5793c5abdc957a3a2c0ad44abfc4849f3ac3219 patch
https://github.com/libnoname/noname/blob/0b7e4be4b6ef64ab8579b2ffc643a2a626e4fede/packages/fs/src/index.ts#L71-L74 technical-description
https://github.com/libnoname/noname/blob/0b7e4be4b6ef64ab8579b2ffc643a2a626e4fede/apps/electron/app/main.ts#L6-L13 technical-description
VulnCheck Advisory: noname v1.11.2 through v1.11.6.1 Missing Authentication in Electron Local File Server third-party-advisory