DEBIAN-CVE-2026-78135

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Source
https://security-tracker.debian.org/tracker/CVE-2026-78135
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78135.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-78135
Upstream
Published
2026-09-11T03:16:23Z
Modified
2026-09-17T09:00:15Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:12 / strongswan

Package

Name
strongswan
Purl
pkg:deb/debian/strongswan?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.9.8-5
5.9.8-5+deb12u1
5.9.8-5+deb12u2
5.9.8-5+deb12u3
5.9.8-5+deb12u4
5.9.8-5+deb12u5
5.9.11-1
5.9.11-2
5.9.12-1
5.9.13-1
5.9.13-2
6.*
6.0.0-1
6.0.0-2
6.0.1-1
6.0.1-2
6.0.1-3
6.0.1-4
6.0.1-5
6.0.1-6
6.0.2-1
6.0.3-1
6.0.4-1
6.0.5-1
6.0.6-1
6.0.7-1
6.1.0-1
6.1.0-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78135.json"

Debian:13 / strongswan

Package

Name
strongswan
Purl
pkg:deb/debian/strongswan?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.1-6+deb13u7

Affected versions

6.*
6.0.1-6
6.0.1-6+deb13u1
6.0.1-6+deb13u2
6.0.1-6+deb13u4
6.0.1-6+deb13u5
6.0.1-6+deb13u6

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78135.json"

Debian:14 / strongswan

Package

Name
strongswan
Purl
pkg:deb/debian/strongswan?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.0.1-6
6.0.2-1
6.0.3-1
6.0.4-1
6.0.5-1
6.0.6-1
6.0.7-1
6.1.0-1
6.1.0-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78135.json"