Skip to main content
VulnerabilityPublished

CVE-2026-100265: JetBrains Rider · CWE-494

Affects JetBrains RiderSource CVE Database V5

0
Compare

Not known to be exploited · CVSS 4.8 Medium : upgrade to 2026.2.1 when convenient.

Data as of 14 Nov 2026, 20:43 UTC

CVSS 3.1 base score
4.8Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2026.2.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 14 Nov 2026.

What to do

Upgrade JetBrains Rider to 2026.2.1.

Affected software

ProductAffectedFixed in
JetBrainsRiderAffected
  • <2026.2.1
Fixed in
  • 2026.2.1

AI-suggested

A fix is available in JetBrains Rider version 2026.2.1. Users should upgrade to this version or later to remediate the vulnerability. No additional mitigation steps are indicated.

Description

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

References

Community reviews

Loading reviews…