CVEvulnerability
CVE-2026-78135
7.3 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-11
- Last modified
- 2026-09-16
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.6 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
- CVSS 3.1 ([email protected])
- 7.3 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- Weaknesses
- CWE-841
Description
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 configurations
• strongswan strongswan (>= 5.9.7 <= 6.0.7)
Related
Weakness · CWE (1)
- CWE-841 Improper Enforcement of Behavioral Workflow weakness
References
- https://github.com/strongswan/strongswan/releases/tag/6.1.0 Release Notes, Vendor Advisory
- https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78135).html Vendor Advisory, Mitigation