What is CVE-2026-78134?

CVE-2026-78134 is a high-severity vulnerability in Strongswan, classified under Incorrect Authorization. CVSS score: 7.1/10. Published 2026-09-11.

How severe is CVE-2026-78134?

High severity. CVSS v3 base score is 7.1 out of 10.

Auth bypass in Strongswan

CVE-2026-78134

strongSwan 4.5.0 through 6.0.7 has Incorrect Access Control in the eap-ttls and eap-peap plugins because there can be a missing or mismatched inner EAP identity.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L.

Affected products

Strongswan

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-78134?: CVE-2026-78134 is a high-severity vulnerability in Strongswan, classified under Incorrect Authorization. CVSS score: 7.1/10. Published 2026-09-11.
How severe is CVE-2026-78134?: High severity. CVSS v3 base score is 7.1 out of 10.