CVE-2026-75055: JetBrains IntelliJ IDEA · XML External Entity (XXE)
Affects JetBrains IntelliJ IDEASource CVE Database V5
Not known to be exploited · CVSS 5.5 Medium : upgrade to 2026.2.1 when convenient.
Data as of 26 Oct 2026, 12:29 UTC
- 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:NExploitation evidence
Disclosed: evidence found.
CVE published 17 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| JetBrainsIntelliJ IDEA | Affected
| Fixed in
|
AI-suggested
Upgrade JetBrains IntelliJ IDEA to version 2026.2.1 or later, where this vulnerability is fixed. No other mitigation or workaround is indicated by the vendor advisory.
Description
CVE-2026-75055 is a vulnerability in JetBrains IntelliJ IDEA prior to version 2026.2.1 where the Hadoop ResourceManager component could be exploited via XML External Entity (XXE) processing to read local files. This issue is fixed in version 2026.2.1. The vulnerability has a medium severity with a CVSS score of 5.5 and requires local access with user interaction to exploit.