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Fencer Vulns
low 3.3

CVE-2026-86505 json

In JetBrains IntelliJ IDEA before 2026.2.2 missing project-trust check leaked project metadata to JetBrains Marketplace

published 2026-09-07 2 mo ago modified 2026-09-08 2 mo ago also EUVD-2026-72521

cvss
3.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 4%
public exploits
0
none known

Summary

In JetBrains IntelliJ IDEA before 2026.2.2 missing project-trust check leaked project metadata to JetBrains Marketplace

Patch / fix

  • JetBrains IntelliJ IDEA 2026.2.2

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 mo ago

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Affected products

  • JetBrains IntelliJ IDEA

Classification

Weakness
  • CWE-201 Insertion of Sensitive Information Into Sent Data

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.