CVE-2026-48134
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedWhen the DLP is active, the UserCheck Web Portal contains an input-handling issue in the UserChoice flow. Under specific conditions, an attacker who can access the UserCheck Ask page could attempt to manipulate the Security Gateway's stored DLP/UserCheck incident information. This could lead to disruptions such as loss of stored incident entries, incorrect handling of pending approvals, or resource impact if the issue is abused repeatedly. Exposure is reduced if the UserCheck Portal is not accessible from untrusted networks.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThis is a Check Point DLP vulnerability in the UserCheck Web Portal's UserChoice flow. An attacker with access to the UserCheck Ask page can manipulate input to affect the Security Gateway's stored DLP/UserCheck incident data, potentially causing loss of incident entries, approval handling errors, or resource exhaustion from repeated attacks.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm Check Point DLP deploymentIdentify if Check Point DLP blade or policy is installed on the Security Gateway. Run 'cpstat -d' or check SmartConsole/Management UI for DLP blade status.Affected if Check Point DLP is not deployed or the DLP blade is disabled on the Security Gateway.
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Verify UserCheck Web Portal is enabledIn SmartConsole, navigate to Gateways > Gateway Properties > UserCheck > Portal Settings, or run 'cpstat -f usercheck' on the gateway CLI to confirm the UserCheck portal service is active.Affected if The UserCheck Web Portal is disabled and not accessible to users.
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Confirm DLP policy is activeCheck if there is an active DLP policy rulebase in SmartConsole under Security Policies > DLP, or run 'dlp_policy get' on the management server to list active DLP rules.Affected if No DLP policy is installed or the DLP policy is set to 'Inactive' mode.
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Check UserChoice flow configurationIn SmartConsole, review DLP rules that use the UserChoice action. Inspect the rule's 'UserCheck settings' to confirm the UserChoice workflow is configured. This flow allows users to approve/deny incidents through the portal.Affected if No DLP rules utilize the UserChoice action; only automated actions (like 'Ask User' without UserChoice or 'Drop') are in use.
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Inspect incident storage for anomaliesOn the Security Gateway, review DLP incident logs in SmartLog or the management server's incident database for unusual patterns: sudden spikes in incident counts, missing incidents, or approvals occurring outside expected workflows.Affected if Incident logs appear normal with no unexpected manipulation or approval anomalies.
The environment is affected if Check Point DLP is deployed with an active policy, the UserCheck Web Portal is enabled, and DLP rules with UserChoice workflow are configured, allowing authenticated portal users to potentially manipulate stored incident data.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataRestrict access to the UserCheck Portal from untrusted networks and apply any available Check Point patches for this DLP input-handling issue.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-48134 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-48134 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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