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VulnerabilityPublished

CVE-2026-75058: JetBrains IntelliJ IDEA · XML External Entity (XXE)

Affects JetBrains IntelliJ IDEASource CVE Database V5

0

Not known to be exploited · CVSS 5.5 Medium : upgrade to 2026.2.1 when convenient.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-08-17.

Patch
Available – fixed in 2026.2.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade JetBrains IntelliJ IDEA to 2026.2.1.

Affected software

ProductAffectedFixed in
JetBrainsIntelliJ IDEAAffected
  • <2026.2.1
Fixed in
  • 2026.2.1

AI-suggested

Upgrade to JetBrains IntelliJ IDEA version 2026.2.1 or later, where this vulnerability is fixed. No other mitigation is indicated or required by the vendor advisory.

Description

CVE-2026-75058 is a vulnerability in JetBrains IntelliJ IDEA prior to version 2026.2.1 that allows XML External Entity (XXE) attacks via the Eclipse settings importers. This flaw could lead to unauthorized disclosure of information. The issue has been fixed in version 2026.2.1.

References

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