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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… (CVE-2026-78134)

0
Medium
Published: 09/07/2026 (09/07/2026, 12:00:00 UTC)
Source: GCVE Database
Product: strongswan

Description

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.

CVSS v3.1

Score 7.1high

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Affected software

Ubuntu:Pro:14.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=esm-infra-legacy/trusty
Affected versions
=4.6.4-9=5.1.0-2=5.1.0-3=5.1.1-0ubuntu1=5.1.1-0ubuntu2=5.1.1-0ubuntu3=5.1.1-0ubuntu4=5.1.1-0ubuntu5=5.1.1-0ubuntu7=5.1.1-0ubuntu14=5.1.1-0ubuntu17=5.1.2~dr3+git20130120-0ubuntu2=5.1.2~dr3+git20130120-0ubuntu3=5.1.2~rc1-0ubuntu3=5.1.2~rc1-0ubuntu4=5.1.2~rc2-0ubuntu2=5.1.2-0ubuntu1=5.1.2-0ubuntu2=5.1.2-0ubuntu2.2=5.1.2-0ubuntu2.3=5.1.2-0ubuntu2.4=5.1.2-0ubuntu2.5=5.1.2-0ubuntu2.6=5.1.2-0ubuntu2.7=5.1.2-0ubuntu2.8=5.1.2-0ubuntu2.10=5.1.2-0ubuntu2.11=5.1.2-0ubuntu2.11+esm1=5.1.2-0ubuntu2.11+esm2=5.1.2-0ubuntu2.11+esm3
Ubuntu:Pro:16.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=esm-infra/xenial
Affected versions
=5.1.2-0ubuntu6=5.1.2-0ubuntu7=5.1.2-0ubuntu8=5.3.5-1ubuntu1=5.3.5-1ubuntu2=5.3.5-1ubuntu3=5.3.5-1ubuntu3.1=5.3.5-1ubuntu3.2=5.3.5-1ubuntu3.3=5.3.5-1ubuntu3.4=5.3.5-1ubuntu3.5=5.3.5-1ubuntu3.7=5.3.5-1ubuntu3.8=5.3.5-1ubuntu3.8+esm1=5.3.5-1ubuntu3.8+esm2=5.3.5-1ubuntu3.8+esm3=5.3.5-1ubuntu3.8+esm4
Ubuntu:Pro:FIPS:16.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=fips-updates/xenial
Affected versions
=5.3.5-1ubuntu3.fips.3.4.1=5.3.5-1ubuntu3.fips.3.4.2=5.3.5-1ubuntu3.fips.3.8.1=5.3.5-1ubuntu3.fips.3.8.2=5.3.5-1ubuntu3.fips.3.8.3=5.3.5-1ubuntu3.fips.3.8.6=5.3.5-1ubuntu3.fips.3.8.7
Ubuntu:Pro:FIPS:16.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=fips/xenial
Affected versions
=5.3.5-1ubuntu3.fips.3.1=5.3.5-1ubuntu3.fips.3.2=5.3.5-1ubuntu3.fips.3.3
Ubuntu:Pro:18.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=esm-infra/bionic
Affected versions
=5.5.1-4ubuntu2=5.5.1-4ubuntu3=5.6.1-2ubuntu1=5.6.1-2ubuntu2=5.6.1-2ubuntu3=5.6.1-2ubuntu4=5.6.2-1ubuntu2=5.6.2-1ubuntu2.2=5.6.2-1ubuntu2.3=5.6.2-1ubuntu2.4=5.6.2-1ubuntu2.5=5.6.2-1ubuntu2.6=5.6.2-1ubuntu2.7=5.6.2-1ubuntu2.8=5.6.2-1ubuntu2.9=5.6.2-1ubuntu2.9+esm1
Ubuntu:Pro:FIPS-updates:18.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=fips-updates/bionic
Affected versions
=5.6.2-1ubuntu2.fips.2.5.1=5.6.2-1ubuntu2.fips.2.7.1=5.6.2-1ubuntu2.fips.2.7.2=5.6.2-1ubuntu2.fips.2.8.1=5.6.2-1ubuntu2.fips.2.9=5.6.2-1ubuntu2.fips.2.9+esm1
Ubuntu:Pro:FIPS:18.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=fips/bionic
Affected versions
=5.6.2-1ubuntu2.fips.2.4.2=5.6.2-1ubuntu2.fips.2.5.1
Ubuntu:20.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=focal
Affected versions
=5.7.2-1ubuntu3=5.8.1-1ubuntu1=5.8.2-1ubuntu1=5.8.2-1ubuntu2=5.8.2-1ubuntu3=5.8.2-1ubuntu3.1=5.8.2-1ubuntu3.2=5.8.2-1ubuntu3.3=5.8.2-1ubuntu3.4=5.8.2-1ubuntu3.5=5.8.2-1ubuntu3.6
Ubuntu:Pro:FIPS-updates:20.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=fips-updates/focal
Affected versions
=5.8.2-1ubuntu3.fips.3.1.2=5.8.2-1ubuntu3.fips.3.3.1=5.8.2-1ubuntu3.fips.3.4.1=5.8.2-1ubuntu3.fips.3.5=5.8.2-1ubuntu3.fips.3.6
Ubuntu:Pro:FIPS:20.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=fips/focal
Affected versions
=5.8.2-1ubuntu3.fips.3.1.2
Ubuntu:22.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=jammy
Affected versions
<5.9.5-2ubuntu2.8=5.9.1-1ubuntu3=5.9.1-1ubuntu3.1=5.9.4-1ubuntu1=5.9.4-1ubuntu2=5.9.4-1ubuntu3=5.9.4-1ubuntu4=5.9.5-2ubuntu1=5.9.5-2ubuntu2=5.9.5-2ubuntu2.1=5.9.5-2ubuntu2.2=5.9.5-2ubuntu2.3=5.9.5-2ubuntu2.4=5.9.5-2ubuntu2.5=5.9.5-2ubuntu2.6=5.9.5-2ubuntu2.7
Ubuntu:Pro:FIPS-preview:22.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=fips-preview/jammy
Affected versions
=5.9.5-2ubuntu2.1+Fips1=5.9.5-2ubuntu2.2+Fips1
Ubuntu:Pro:FIPS-updates:22.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=fips-updates/jammy
Affected versions
=5.9.5-2ubuntu2.1+Fips1=5.9.5-2ubuntu2.2+Fips1=5.9.5-2ubuntu2.3+Fips1=5.9.5-2ubuntu2.4+Fips1=5.9.5-2ubuntu2.5+Fips1=5.9.5-2ubuntu2.6+Fips1=5.9.5-2ubuntu2.7+Fips1
Ubuntu:24.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=noble
Affected versions
<5.9.13-2ubuntu4.24.04.5=5.9.11-1ubuntu1=5.9.11-1ubuntu2=5.9.12-1ubuntu1=5.9.13-2ubuntu1=5.9.13-2ubuntu3=5.9.13-2ubuntu4=5.9.13-2ubuntu4.24.04.1=5.9.13-2ubuntu4.24.04.2=5.9.13-2ubuntu4.24.04.3=5.9.13-2ubuntu4.24.04.4
Ubuntu:26.04:LTSmore threats →ghsa
strongswan
pkg:deb/ubuntu/strongswan?arch=source&distro=resolute
Affected versions
<6.0.4-1ubuntu3.2=6.0.1-6ubuntu4=6.0.1-6ubuntu5=6.0.4-1ubuntu1=6.0.4-1ubuntu2=6.0.4-1ubuntu3=6.0.4-1ubuntu3.1

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2026-78134
Osv Schema Version
1.7.0
Ecosystems
["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:FIPS:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:FIPS-updates:18.04:LTS","Ubuntu:Pro:FIPS:18.04:LTS","Ubuntu:20.04:LTS","Ubuntu:Pro:FIPS-updates:20.04:LTS","Ubuntu:Pro:FIPS:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:Pro:FIPS-preview:22.04:LTS","Ubuntu:Pro:FIPS-updates:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.04:LTS"]
Cvss Version
3.1

Threat ID: 6ab1e394f7a7c541064730be

Added to database: 09/22/2026, 02:10:28 UTC

Last updated: 09/22/2026, 02:50:24 UTC

Views: 2

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