CVE-2026-78132

EUVD-2026-75906
strongSwan 5.1.3 through 6.0.7 has an infinite loop in the x509 plugin's attribute certificate parser for ietfAttrSyntax.
Infinite Loop
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 27.97%
Affected Products (NVD)
VendorProductVersion
strongswanstrongswan
5.1.3 ≤
𝑥
< 6.1.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
strongswan
bookworm
vulnerable
bookworm (security)
vulnerable
forky
6.1.0-2
fixed
sid
6.1.0-2
fixed
trixie
vulnerable
trixie (security)
6.0.1-6+deb13u7
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
strongswan
bionic
needs-triage
focal
needs-triage
jammy
Fixed in 5.9.5-2ubuntu2.8
released
noble
Fixed in 5.9.13-2ubuntu4.24.04.5
released
resolute
Fixed in 6.0.4-1ubuntu3.2
released
stonking
not-affected
trusty
needs-triage
xenial
needs-triage
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
strongswan
suse enterprise desktop 15 SP7
5.9.14-150700.3.21.2
fixed
suse enterprise sap 15 SP4
5.9.11-150400.19.40.2
fixed
suse enterprise sap 15 SP5
5.9.11-150500.5.28.2
fixed
suse enterprise sap 15 SP6
5.9.12-150600.3.23.2
fixed
suse enterprise sap 15 SP7
5.9.14-150700.3.21.2
fixed
suse enterprise server 15 SP4
5.9.11-150400.19.40.2
fixed
suse enterprise server 15 SP5
5.9.11-150500.5.28.2
fixed
suse enterprise server 15 SP6
5.9.12-150600.3.23.2
fixed
suse enterprise server 15 SP7
5.9.14-150700.3.21.2
fixed
strongswan-doc
suse enterprise desktop 15 SP7
5.9.14-150700.3.21.2
fixed
suse enterprise sap 15 SP4
5.9.11-150400.19.40.2
fixed
suse enterprise sap 15 SP5
5.9.11-150500.5.28.2
fixed
suse enterprise sap 15 SP6
5.9.12-150600.3.23.2
fixed
suse enterprise sap 15 SP7
5.9.14-150700.3.21.2
fixed
suse enterprise server 15 SP4
5.9.11-150400.19.40.2
fixed
suse enterprise server 15 SP5
5.9.11-150500.5.28.2
fixed
suse enterprise server 15 SP6
5.9.12-150600.3.23.2
fixed
suse enterprise server 15 SP7
5.9.14-150700.3.21.2
fixed
strongswan-hmac
suse enterprise desktop 15 SP7
5.9.14-150700.3.21.2
fixed
suse enterprise sap 15 SP4
5.9.11-150400.19.40.2
fixed
suse enterprise sap 15 SP5
5.9.11-150500.5.28.2
fixed
suse enterprise sap 15 SP6
5.9.12-150600.3.23.2
fixed
suse enterprise sap 15 SP7
5.9.14-150700.3.21.2
fixed
suse enterprise server 15 SP4
5.9.11-150400.19.40.2
fixed
suse enterprise server 15 SP5
5.9.11-150500.5.28.2
fixed
suse enterprise server 15 SP6
5.9.12-150600.3.23.2
fixed
suse enterprise server 15 SP7
5.9.14-150700.3.21.2
fixed
strongswan-ipsec
suse enterprise desktop 15 SP7
5.9.14-150700.3.21.2
fixed
suse enterprise sap 15 SP4
5.9.11-150400.19.40.2
fixed
suse enterprise sap 15 SP5
5.9.11-150500.5.28.2
fixed
suse enterprise sap 15 SP6
5.9.12-150600.3.23.2
fixed
suse enterprise sap 15 SP7
5.9.14-150700.3.21.2
fixed
suse enterprise server 15 SP4
5.9.11-150400.19.40.2
fixed
suse enterprise server 15 SP5
5.9.11-150500.5.28.2
fixed
suse enterprise server 15 SP6
5.9.12-150600.3.23.2
fixed
suse enterprise server 15 SP7
5.9.14-150700.3.21.2
fixed
strongswan-libs0
suse enterprise desktop 15 SP7
5.9.14-150700.3.21.2
fixed
suse enterprise sap 15 SP4
5.9.11-150400.19.40.2
fixed
suse enterprise sap 15 SP5
5.9.11-150500.5.28.2
fixed
suse enterprise sap 15 SP6
5.9.12-150600.3.23.2
fixed
suse enterprise sap 15 SP7
5.9.14-150700.3.21.2
fixed
suse enterprise server 15 SP4
5.9.11-150400.19.40.2
fixed
suse enterprise server 15 SP5
5.9.11-150500.5.28.2
fixed
suse enterprise server 15 SP6
5.9.12-150600.3.23.2
fixed
suse enterprise server 15 SP7
5.9.14-150700.3.21.2
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
strongswan
Azure Linux 3.0
0:5.9.14-11.azl3
fixed