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PatchSiren cyber security CVE debrief

CVE-2026-88028 MongoDB CVE debrief

CVE-2026-88028 Improper neutralization of special elements in data query logic in the polymorphic relation handling of the MongoDB integration for Laravel can cause a caller-supplied relation identifier to be interpreted as a query condition rather than as a literal identifier. This vulnerability allows an authenticated user who can influence a stored relation identifier to potentially return a document other than the intended relation target, leading to unauthorized data exposure. Defenders should assess exposure and prioritize remediation, focusing on restricting user input and ensuring proper relation identifier validation.

Vendor
MongoDB
Product
Laravel MongoDB (PHP)
CVSS
HIGH 7.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-10
Original CVE updated
2026-09-29
Advisory published
2026-09-10
Advisory updated
2026-09-29

Who should care

Defenders responsible for Laravel MongoDB integrations, security teams, and developers using the affected versions should assess exposure and prioritize remediation. This includes reviewing and updating affected versions, restricting user input, and ensuring proper relation identifier validation to prevent potential unauthorized data exposure.

Why it matters

CVE-2026-88028 requires verification and remediation in Laravel MongoDB integrations to prevent potential unauthorized data exposure and ensure proper input validation.

  • Potential unauthorized data exposure through manipulated relation identifiers
  • Risk of unintended data disclosure due to improper input validation
  • Need for verification of user input and relation identifier handling
  • Possible impact on data integrity and confidentiality

Technical summary

The polymorphic relation handling of the MongoDB integration for Laravel improperly neutralizes special elements in data query logic, allowing a caller-supplied relation identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence a stored relation identifier may cause an affected application to return a document other than the intended relation target.

Defensive priority

Defenders should prioritize verifying and remediating this vulnerability in Laravel MongoDB integrations, focusing on restricting user input and ensuring proper relation identifier validation.

Recommended defensive actions

  • Verify and remediate Laravel MongoDB integrations to restrict user input and ensure proper relation identifier validation
  • Review and update affected versions to 5.11.0 or later
  • Monitor for suspicious activity related to MongoDB integration usage
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected versions. However, additional information on exploitation or impact is limited. Defenders should verify and remediate Laravel MongoDB integrations, review and update affected versions to 5.11.0 or later, and monitor for suspicious activity related to MongoDB integration usage. The vulnerability requires verification and remediation to prevent potential unauthorized data exposure and ensure proper input validation.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-88028 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-88028

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

  • CVE-2026-88028 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-88028

    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.