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Vulnerability record · public intelligence
CVE-2026-92860
CRITICAL

rcourtman Pulse Quick Security Setup quick-setup fmt.Sprintf input validation

Published Sep 17, 2026 · Updated Oct 23, 2026

Severity · CVSSCRITICAL · 9.1
Known exploitationNot listed
EPSS / likelihood0.85%
QFinch risk score20 / 100

Original summary

Normalized public record · Updated Oct 23, 2026

rcourtman Pulse Quick Security Setup quick-setup fmt.Sprintf input validation

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

A security flaw has been discovered in rcourtman Pulse up to 6.0.4/6.1.0-rc.4. Affected by this issue is the function fmt.Sprintf of the file /api/security/quick-setup of the component Quick Security Setup Handler. The manipulation of the argument Username results in improper input validation. The attack may be performed from remote. Upgrading the affected component is advised.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

CVENVDEPSS
SSVC priority
MEDIUM
Confidence
20%
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. VDB-406309 | rcourtman Pulse Quick Security Setup quick-setup fmt.Sprintf input validation ↗
  2. VDB-406309 | CTI Indicators (IOB, IOC, IOA) ↗
  3. CVE-2026-92860 | CVE Analysis and Report ↗
  4. Submit #941807 | GitHub Pulse <= 6.0.4 Improper Input Validation / Remote Code Execution ↗
  5. Security advisory ↗
  6. Source repository ↗
  7. Source repository ↗

Record history

Published Sep 17, 2026 · Last refreshed Oct 23, 2026