Bug 2533640 (CVE-2026-91839)

Summary: CVE-2026-91839 NetworkManager-fortisslvpn: NetworkManager-fortisslvpn: local privilege escalation to root via CRLF injection in VPN profile credentials
Product: [Other] Security Response Reporter: Vladimir Vasilev <vvasilev>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in NetworkManager-fortisslvpn, the FortiSSLVPN plugin for NetworkManager. The nm-fortisslvpn-service improperly handles carriage-return/line-feed (CR/LF) characters in VPN connection profile credentials. A local unprivileged user can exploit this by crafting a malicious VPN profile to inject additional configuration directives. This can lead to arbitrary code execution with root privileges when the crafted VPN connection is activated.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2533690, 2533691    
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Description Vladimir Vasilev 2026-09-15 09:48:12 UTC
HASH(0x55b2897e2008)