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PatchSiren cyber security CVE debrief

CVE-2026-39039 Meesho CVE debrief

CVE-2026-39039 debrief based on the supplied source corpus. The vulnerability in BharatMLStack up to v1.3.0 stores sensitive data in localStorage, potentially allowing unauthorized access. Developers and administrators should assess exposure and verify localStorage usage. This medium-severity vulnerability requires verification of authentication and session management mechanisms to prevent unauthorized access and assess exposure of BharatMLStack deployments to potential data breaches. The CVE record and NVD entry provide details on the vulnerability.

Vendor
Meesho
Product
BharatMLStack
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-15
Original CVE updated
2026-09-22
Advisory published
2026-09-15
Advisory updated
2026-09-22

Who should care

Developers and administrators of BharatMLStack deployments should assess exposure and verify localStorage usage. They should review authentication and session management mechanisms to prevent unauthorized access and assess exposure of BharatMLStack deployments to potential data breaches. Operators, platform administrators, vulnerability management teams, and security teams should also review the vulnerability and its

Why it matters

CVE-2026-39039 is a medium-severity vulnerability in BharatMLStack up to v1.3.0 that stores sensitive data in localStorage, potentially allowing unauthorized access.

  • Verify authentication and session management mechanisms to prevent unauthorized access
  • Assess exposure of BharatMLStack deployments to potential data breaches

Technical summary

BharatMLStack up to v1.3.0 stores JWT authentication token, full user object, and session ID in browser's localStorage, which is fully accessible to any JavaScript running on the page. This medium-severity vulnerability requires verification of authentication and session management mechanisms to prevent unauthorized access and assess exposure of BharatMLStack deployments to potential data breaches.

Defensive priority

Assess exposure of BharatMLStack deployments, verify localStorage usage.

Recommended defensive actions

  • Assess exposure of BharatMLStack deployments
  • Verify localStorage usage and data storage practices
  • Review authentication and session management mechanisms

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in BharatMLStack up to v1.3.0. Evidence from the CVE Program record and NIST NVD detail page confirms the vulnerability. The official advisory and CVE record validate affected scope, severity, and vendor guidance. Defenders should verify localStorage usage and data storage practices.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-39039 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-39039

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

  • CVE-2026-39039 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-39039

    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.