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CVE-2026-75053 JetBrains CVE debrief

CVE-2026-75053 debrief based on the supplied source corpus. The vulnerability affects JetBrains IntelliJ IDEA, specifically the DevKit debug listener endpoint, allowing for sSRF attacks. Defenders should assess exposure, especially in deployments using this endpoint, and implement necessary mitigations. The CVE record and NVD entry provide initial details, but further verification is recommended. This vulnerability has a CVSS score of 5.4 and is classified as MEDIUM severity. The primary source for details is the vendor advisory.

Vendor
JetBrains
Product
IntelliJ IDEA
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-17
Original CVE updated
2026-09-11
Advisory published
2026-08-17
Advisory updated
2026-09-11

Who should care

Defenders responsible for IntelliJ IDEA deployments, especially those using the DevKit debug listener endpoint, should assess exposure and implement mitigations.

Why it matters

CVE-2026-75053 is a MEDIUM-severity vulnerability in JetBrains IntelliJ IDEA that allows for sSRF attacks via the DevKit debug listener endpoint. Defenders should prioritize verifying exposure, assessing potential impacts, and implementing mitigations.

  • Verification of exposure in IntelliJ IDEA deployments
  • Assessment of potential sSRF attacks on internal systems and networks
  • Implementation of compensating controls to mitigate potential attacks
  • Monitoring for suspicious activity related to the vulnerability

Technical summary

The CVE-2026-75053 vulnerability in JetBrains IntelliJ IDEA allows for sSRF attacks via the DevKit debug listener endpoint. The vulnerability has a CVSS score of 5.4 and is classified as MEDIUM severity. It affects IntelliJ IDEA deployments, particularly those using the DevKit debug listener endpoint. Defenders should prioritize verifying exposure, assessing potential impacts, and implementing mitigations to prevent sSRF attacks.

Defensive priority

Defenders should prioritize verifying exposure in IntelliJ IDEA deployments, especially those using the DevKit debug listener endpoint.

Recommended defensive actions

  • Verify IntelliJ IDEA deployments for exposure to the DevKit debug listener endpoint
  • Assess the impact of sSRF vulnerability on internal systems and networks
  • Implement compensating controls to mitigate potential attacks
  • Monitor for suspicious activity related to the vulnerability

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability, with the vendor advisory being the primary source for details. Evidence is limited to publicly available data from these sources. Defenders should verify exposure in their IntelliJ IDEA deployments, especially those using the DevKit debug listener endpoint, and assess potential impacts. The vulnerability allows for sSRF attacks, which could lead to unauthorized access or data breaches. Further review of

Sources and references

Verified primary and authoritative sources

  • CVE-2026-75053 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-75053

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-75053 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-75053

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.