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CVE-2026-71386

8.8
High
EPSS 7%Patch availableAug 12, 2026

Admin-zone XSS via malicious file can execute scripts in the user's/admin context.

common questions

Is CVE-2026-71386 being exploited?

Not confirmed. CVE-2026-71386 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 6.9% probability of exploitation in the next 30 days.

How severe is CVE-2026-71386?

CVE-2026-71386 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-71386?

Yes. A fix has been recorded for CVE-2026-71386. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-71386 affect?

CVE-2026-71386 affects Web-based admin interfaces using the vulnerable component, Systems in administrative network zones, Applications accepting file uploads. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-71386?

Apply vendor patch when available; disable/limit admin file uploads; enforce input sanitization and MFA.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
Web-based admin interfaces using the vulnerable componentSystems in administrative network zonesApplications accepting file uploads
impact

Cross-site scripting via crafted file in admin UI allows script execution as admin, session theft, privilege abuse and unauthorized admin actions.

action required

Patch when possible

affected versions
Adobe ColdFusion 2023
  • affected<= 2023.0.22
vendor says fixed in2023.0.23
Adobe ColdFusion 2025
  • affected<= 2025.0.11
vendor says fixed in2025.0.12

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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