CVE-2026-78134 strongSwan - Broken Access Control

strongSwan 4.5.0 through 6.0.7 contains an incorrect access control vulnerability caused by missing or mismatched inner EAP identity in eap-ttls and eap-peap plugins, letting attackers bypass access restrictions, exploit requires crafted EAP messages.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.32% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
Published
11 September 2026
Updated
15 October 2026
Weakness
CWE-863

Vendor fix

Update to a version later than 6.0.7 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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