Netskope Client Captive Portal WebView Persistence allowing SWG bypass issue
Netskope is notified about a potential gap in its agent (NSClient) where a system with Netskope Client while connecting to an access point with Captive Portal switches to a Network which already has internet connectivity, the Captive Portal does not close. This allows the possibility of abuse via the Captive Portal using a rogue access point to either access malicious sites or exfiltrate data.The issue impacts all versions prior to R142
CVE-2026-12254
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-12254
Netskope Client
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Netskope Inc.",
"product": "Netskope Client",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "142",
"versionType": "custom"
}
],
"platforms": [
"Windows",
"MacOS"
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-12254
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #49279 · Revision 1
- Added to Heist Feed
- Publisher date