Vulnerability · Published Sep 30, 2026 · Assigned by JetBrains

CVE-2026-100265

Medium 4.8

In plain English

A medium-severity security flaw in Rider from JetBrains. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).

Severity (CVSS 3.1)4.8Medium
Exploit odds (30 days)0.1%top 99.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In JetBrains Rider before 2026.2.1 aI Assistant could auto-update third-party skills without user confirmation

Affected products (as reported)

VendorProductVersions
JetBrains Rider 0 – before 2026.2.1

Weakness: CWE-494 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

References