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PatchSiren cyber security CVE debrief

CVE-2026-13257 IBM CVE debrief

IBM DataPower Gateway Insufficient Verification of Data Authenticity vulnerability allows an authenticated user to forge signature requests due to insufficient verification of data authenticity, posing a medium-severity risk. DataPower Gateway administrators and security teams should assess exposure, prioritize patching, and verify data authenticity configurations to mitigate potential risks. The vulnerability affects IBM DataPower Gateway versions 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2.

Vendor
IBM
Product
DataPower Gateway 10.6CD
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-08
Original CVE updated
2026-10-08
Advisory published
2026-10-08
Advisory updated
2026-10-08

Who should care

DataPower Gateway administrators and security teams responsible for IBM DataPower Gateway systems should assess exposure, prioritize patching, and verify data authenticity configurations to mitigate potential risks. They should review and apply IBM's official patch for affected DataPower Gateway versions, verify data authenticity and signature requests in DataPower Gateway configurations, and monitor DataPowerGateway

Why it matters

CVE-2026-13257 is a medium-severity vulnerability in IBM DataPower Gateway that allows an authenticated user to forge signature requests due to insufficient verification of data authenticity. DataPower Gateway administrators and security teams should assess exposure, prioritize patching, and verify data authenticity configurations to mitigate potential risks.

  • Potential for authenticated users to forge signature requests
  • Risk of data integrity compromise
  • Need for verification of data authenticity in DataPower Gateway configurations
  • Medium priority for patching and configuration review

Technical summary

IBM DataPower Gateway versions 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 are vulnerable to insufficient verification of data authenticity, allowing an authenticated user to forge signature requests.

Defensive priority

Medium priority for DataPower Gateway administrators

Recommended defensive actions

  • Review and apply IBM's official patch for affected DataPower Gateway versions
  • Verify data authenticity and signature requests in DataPower Gateway configurations
  • Monitor DataPower Gateway systems for potential misuse

Evidence notes

The CVE record and source item provide details on the vulnerability. However, additional information from IBM's official advisory is required for comprehensive assessment.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-13257 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-13257

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

  • CVE-2026-13257 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-13257

    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.