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CVE-2026-100265

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

4.8 Medium

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

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.10%Unchanged since Oct 1, 2026
90%50%10%1%

What each source reports

CVE List Score used 4.8

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

Record
CVE-2026-100265
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-494
Updated
2026-11-02
EUVDEUVD-2026-90009 4.8

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

Record
EUVD-2026-90009
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-f82x-3h7v-827j 4.8

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

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

Record
GHSA-f82x-3h7v-827j
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-494
Updated
2026-11-02
NVD 4.8

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

Record
CVE-2026-100265
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-494
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-100265 is a medium vulnerability (CVSS 4.8) in Jetbrains Rider, published September 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.10%, the 0th percentile. No source names a fixed version.

References

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