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PatchSiren cyber security CVE debrief

CVE-2026-10868 misp CVE debrief

A mass assignment vulnerability exists in the MISP user edit functionality due to insufficient filtering of user-supplied fields in UsersController::edit(). When processing edit requests, the application accepted a user-controlled User.id value from request data. An authenticated attacker could craft a modified request containing another user identifier, potentially causing updates to be applied to an unintended user account. Depending on the editable fields and the attacker’s privileges, this could allow unauthorized modification of user account attributes and impact account integrity. The issue was addressed by explicitly removing the User.id field from request data before processing the user edit operation.

Vendor
misp
Product
Unknown
CVSS
CRITICAL 9
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

Administrators and users of the MISP platform should be aware of this vulnerability and take immediate action to update their systems to prevent potential exploitation.

Technical summary

The vulnerability has a CVSS score of 9 and is classified as CRITICAL. It can be exploited by an authenticated attacker with low privileges, and the attack vector is network-based.

Defensive priority

HIGH

Recommended defensive actions

  • Update MISP to the latest version to ensure the User.id field is properly sanitized.
  • Restrict user edit functionality to authorized personnel only.
  • Monitor user account activity for suspicious changes.

Evidence notes

The CVE record and NVD detail pages provide further information on this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-10868 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-10868

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

  • CVE-2026-10868 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-10868

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

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://github.com/MISP/MISP/commit/1be8c413b7104a889dfd30c5b1986e3ab17238e8

    5a6e4751-2f3f-4070-9419-94fb35b644e8

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.