# CVE-2026-47895: 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.

CVE-2026-47895 is fixed in 15 products on 1 platform, first by charon-cmd 6.0.4-1ubuntu3.1, released June 8, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-47895
- Priority: High
- CVSS: 7.5 (Important)
- EPSS: 0.0042
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 8, 2026
- Weakness: Double Free
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47895

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | charon-cmd Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [charon-cmd 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-charon-cmd-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | charon-cmd Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [charon-cmd 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-charon-cmd-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | charon-cmd Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [charon-cmd 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-charon-cmd-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | charon-cmd Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [charon-cmd 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-charon-cmd-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | charon-systemd Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [charon-systemd 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-charon-systemd-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | charon-systemd Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [charon-systemd 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-charon-systemd-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | charon-systemd Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [charon-systemd 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-charon-systemd-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | charon-systemd Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [charon-systemd 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-charon-systemd-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | libcharon-extauth-plugins Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [libcharon-extauth-plugins 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcharon-extauth-plugins-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | libcharon-extauth-plugins Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [libcharon-extauth-plugins 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libcharon-extauth-plugins-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | libcharon-extauth-plugins Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [libcharon-extauth-plugins 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libcharon-extauth-plugins-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | libcharon-extauth-plugins Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [libcharon-extauth-plugins 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libcharon-extauth-plugins-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | libcharon-extra-plugins Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [libcharon-extra-plugins 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcharon-extra-plugins-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | libcharon-extra-plugins Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [libcharon-extra-plugins 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libcharon-extra-plugins-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | libcharon-extra-plugins Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [libcharon-extra-plugins 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libcharon-extra-plugins-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | libcharon-extra-plugins Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [libcharon-extra-plugins 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libcharon-extra-plugins-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | libstrongswan Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [libstrongswan 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libstrongswan-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | libstrongswan Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [libstrongswan 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libstrongswan-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | libstrongswan Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [libstrongswan 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libstrongswan-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | libstrongswan Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [libstrongswan 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libstrongswan-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | libstrongswan-extra-plugins Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [libstrongswan-extra-plugins 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libstrongswan-extra-plugins-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | libstrongswan-extra-plugins Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [libstrongswan-extra-plugins 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libstrongswan-extra-plugins-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | libstrongswan-extra-plugins Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [libstrongswan-extra-plugins 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libstrongswan-extra-plugins-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | libstrongswan-extra-plugins Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [libstrongswan-extra-plugins 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libstrongswan-extra-plugins-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | libstrongswan-standard-plugins Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [libstrongswan-standard-plugins 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libstrongswan-standard-plugins-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | libstrongswan-standard-plugins Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [libstrongswan-standard-plugins 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libstrongswan-standard-plugins-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | libstrongswan-standard-plugins Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [libstrongswan-standard-plugins 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libstrongswan-standard-plugins-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | libstrongswan-standard-plugins Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [libstrongswan-standard-plugins 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libstrongswan-standard-plugins-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | strongswan Debian 12.15 (bookworm) | 5.9.8-5+deb12u5 | [DEBIAN-CVE-2026-47895](https://patchblox.com/security/data/fix/linux/debian-cve-2026-47895.md) | Jun 24, 2026 |
| Linux | strongswan Debian 13.5 (trixie) | 6.0.1-6+deb13u6 | [DEBIAN-CVE-2026-47895](https://patchblox.com/security/data/fix/linux/debian-cve-2026-47895.md) | Jun 24, 2026 |
| Linux | strongswan Debian 14 | 6.0.7-1 | [DEBIAN-CVE-2026-47895](https://patchblox.com/security/data/fix/linux/debian-cve-2026-47895.md) | Jun 24, 2026 |
| Linux | strongswan Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [strongswan 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | strongswan Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [strongswan 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | strongswan Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [strongswan 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-strongswan-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | strongswan Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [strongswan 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | strongswan opensuse-leap 16.0 | 6.0.6-160000.2.1 | [OPENSUSE-SU-2026:21092-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21092-1.md) | Jun 18, 2026 |
| Linux | strongswan sles 15.7 | 5.9.14-150700.3.21.2 | [SUSE-SU-2026:4115-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4115-1.md) | Sep 9, 2026 |
| Linux | strongswan sles 16.0 | 6.0.6-160000.2.1 | [SUSE-SU-2026:22168-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22168-1.md) | Jun 18, 2026 |
| Linux | strongswan-charon Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [strongswan-charon 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-charon-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | strongswan-charon Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [strongswan-charon 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-charon-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | strongswan-charon Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [strongswan-charon 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-strongswan-charon-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | strongswan-charon Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [strongswan-charon 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-charon-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | strongswan-libcharon Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [strongswan-libcharon 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-libcharon-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | strongswan-libcharon Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [strongswan-libcharon 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-libcharon-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | strongswan-libcharon Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [strongswan-libcharon 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-strongswan-libcharon-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | strongswan-libcharon Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [strongswan-libcharon 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-libcharon-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | strongswan-nm Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [strongswan-nm 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-nm-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | strongswan-nm Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [strongswan-nm 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-nm-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | strongswan-nm Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [strongswan-nm 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-strongswan-nm-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | strongswan-nm Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [strongswan-nm 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-nm-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | strongswan-pki Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [strongswan-pki 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-pki-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | strongswan-pki Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [strongswan-pki 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-pki-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | strongswan-pki Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [strongswan-pki 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-strongswan-pki-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | strongswan-pki Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [strongswan-pki 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-pki-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | strongswan-scepclient Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [strongswan-scepclient 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-scepclient-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | strongswan-starter Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [strongswan-starter 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-starter-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | strongswan-starter Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [strongswan-starter 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-starter-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | strongswan-starter Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [strongswan-starter 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-strongswan-starter-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | strongswan-starter Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [strongswan-starter 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-starter-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |
| Linux | strongswan-swanctl Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.7 | [strongswan-swanctl 5.9.5-2ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-swanctl-5.9.5-2ubuntu2.7.md) | Jun 24, 2026 |
| Linux | strongswan-swanctl Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.4 | [strongswan-swanctl 5.9.13-2ubuntu4.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-swanctl-5.9.13-2ubuntu4.24.04.4.md) | Jun 24, 2026 |
| Linux | strongswan-swanctl Ubuntu 25.10 (questing) | 6.0.1-6ubuntu4.4 | [strongswan-swanctl 6.0.1-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-strongswan-swanctl-6.0.1-6ubuntu4.4.md) | Jun 24, 2026 |
| Linux | strongswan-swanctl Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.1 | [strongswan-swanctl 6.0.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-swanctl-6.0.4-1ubuntu3.1.md) | Jun 8, 2026 |

---

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