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PatchSiren cyber security CVE debrief

CVE-2026-42539 dfir-iris CVE debrief

CVE-2026-42539 is a MEDIUM severity vulnerability in the IRIS web collaborative platform. Versions prior to 2.4.28 return sensitive data to users that are not required for the client's operation. This vulnerability was patched in version 2.4.28. The CVSS score for this vulnerability is 6.5.

Vendor
dfir-iris
Product
iris-web
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-07-22
Advisory published
2026-06-04
Advisory updated
2026-07-22

Who should care

Users of IRIS web collaborative platform versions prior to 2.4.28 should apply the patch to prevent sensitive data exposure.

Technical summary

The IRIS web collaborative platform, used for sharing technical details during incident investigations, had a vulnerability where it would return sensitive data to users that wasn't required for the client's operation. This issue was addressed in version 2.4.28.

Defensive priority

MEDIUM

Recommended defensive actions

  • Upgrade to IRIS version 2.4.28 or later to apply the patch.

Evidence notes

CVE-2026-42539 has a CVSS score of 6.5 and a severity of MEDIUM. It was published on [cvePublishedAt] and modified on [cveModifiedAt].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-42539 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-42539

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

  • CVE-2026-42539 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-42539

    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.