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VulnerabilityPublished

CVE-2026-75053: JetBrains IntelliJ IDEA · Server-Side Request Forgery

Affects JetBrains IntelliJ IDEASource CVE Database V5

0

Not known to be exploited · CVSS 5.4 Medium : upgrade to 2026.2.1 when convenient.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
5.4Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 14% 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:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/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

Users should upgrade IntelliJ IDEA to version 2026.2.1 or later, where this vulnerability is fixed. No additional mitigation steps are indicated by the vendor advisory.

Description

CVE-2026-75053 is a Server-Side Request Forgery (SSRF) vulnerability in JetBrains IntelliJ IDEA versions before 2026.2.1. The flaw exists in the DevKit debug listener endpoint, allowing an attacker to induce the application to make unintended requests. This vulnerability has a medium severity with a CVSS score of 5.4. JetBrains has fixed the issue in version 2026.2.1.

References

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