Vulnerability · Published Aug 22, 2026 · Assigned by mitre
CVE-2026-47895
High 7.5
In plain English
A high-severity double free in strongSwan from strongSwan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 63.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In strongSwan before 6.0.7, identity parsing/cloning is mishandled. Parsed EAP-Identities that result in an empty but non-NULL encoding are not correctly cloned and trigger a double-free once the duplicates are destroyed.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.24 | strongswan | 6.0.7-r0 | ALPINE-CVE-2026-47895 |
| Debian:12 | strongswan | 5.9.8-5+deb12u5 | DEBIAN-CVE-2026-47895 |
| Debian:13 | strongswan | 6.0.1-6+deb13u6 | DEBIAN-CVE-2026-47895 |
| Debian:14 | strongswan | 6.0.7-1 | DEBIAN-CVE-2026-47895 |
| Ubuntu:22.04:LTS | strongswan | 5.9.5-2ubuntu2.7 | UBUNTU-CVE-2026-47895 |
| Ubuntu:24.04:LTS | strongswan | 5.9.13-2ubuntu4.24.04.4 | UBUNTU-CVE-2026-47895 |
| Ubuntu:25.10 | strongswan | 6.0.1-6ubuntu4.4 | UBUNTU-CVE-2026-47895 |
| Ubuntu:26.04:LTS | strongswan | 6.0.4-1ubuntu3.1 | UBUNTU-CVE-2026-47895 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| strongSwan | strongSwan | 4.3.3 – before 6.0.7 |
Weakness: CWE-415 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H