CVE-2026-78135
5.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Summary
libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state machine. Because CREATE_CHILD_SA requests are mishandled, there can be an authentication bypass.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| strongSwan | strongSwan | 5.9.7 < 6.1.0 | affected |
Weaknesses
- CWE-841: CWE-841 Improper Enforcement of Behavioral Workflow
References
- https://github.com/strongswan/strongswan/releases/tag/6.1.0
- https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78135).html
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