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Vulnerability record · CVE-2026-92860 · published 17 September 2026

CVE-2026-92860: Improper input validation vulnerability

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.

9.4 CVSS 4.0 Critical EPSS 0.85% · top 43.4% CWE-20 · Improper input validation Deferred
9.4CVSS 4.0 base score, v2 8.3
0.85%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
8References
19 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/rcourtman/Pulse/
https://github.com/rcourtman/Pulse/releases/tag/v6.1.0
https://github.com/rcourtman/Pulse/security/advisories/GHSA-rr3f-jjrr-3qxv
https://vuldb.com/cve/CVE-2026-92860
https://vuldb.com/submit/941807
https://vuldb.com/vuln/406309
https://vuldb.com/vuln/406309/cti
https://github.com/rcourtman/Pulse/security/advisories/GHSA-rr3f-jjrr-3qxv

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Source: NIST National Vulnerability Database (record CVE-2026-92860), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.