CVE-2026-78135

HighCVSS 7.3/10Last modified Sep 16, 2026

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.

Metrics

CVSS 3.1 7.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-841

Affected software

Vendor	Product	Versions
strongSwan	strongSwan	>= 5.9.7, < 6.1.0

References

https://github.com/strongswan/strongswan/releases/tag/6.1.0Release Notes, Vendor Advisory
https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78135).htmlVendor Advisory, Mitigation

Timeline

Published: Sep 11, 2026
Last modified: Sep 16, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-781367.8chirpmyradio CHIRP before 39178db allows eval injection via crafted CSV data. This occurs in _clean_tmode in drivers/kenwood_itm.py.CVE-2026-781377.5The StoreGrowth WordPress plugin before 2.1.2 does not validate a browser-supplied product price on two of its unauthenticated actions, all CVE-2026-781384.3The Finale Lite WordPress plugin before 2.21.0 does not perform a capability check on an AJAX action that returns a sales-campaign's config CVE-2026-781394.3The Notifima WordPress plugin before 3.1.4 does not verify that the caller owns the subscription being modified on one of its REST endpoint CVE-2026-78144.8Stored cross-site scripting (XSS) vulnerability in pgAdmin 4 Browser Tree and Explain Visualizer modules. User-controlled PostgreSQL object CVE-2026-781404.7A flaw has been found in Dromara UJCMS up to 10.1.3. The impacted element is the function update of the file src/main/java/com/ujcms/cms/ext CVE-2026-781417.4A vulnerability has been found in Tenda CH22 1.0.0.1. This affects the function formexeCommand of the file /goform/exeCommand. The manipulat CVE-2026-781426.3A vulnerability was found in code-projects Barangay Resident Profiling Management System 1.0. This impacts an unknown function of the file /CVE-2026-781437.3A vulnerability was determined in code-projects Barangay Resident Profiling Management System 1.0. Affected is an unknown function of the fi CVE-2026-781446.3A vulnerability was identified in code-projects Barangay Resident Profiling Management System 1.0. Affected by this vulnerability is an unkn CVE-2026-781454.3A vulnerability has been found in CTFd up to 3.8.4. The affected element is the function _is_safe_url of the file CTFd/utils/validators/__in CVE-2026-781466.5The Simple Newsletter Plugin WordPress plugin before 4.3.3 does not verify that the requester is the subscriber named in a public request b