# CVE-2026-78129: strongSwan 4.6.2 through 6.0.7 has an infinite loop in PKCS#5 decryption. CVE-2026-78129 is fixed in 15 products on 1 platform, first by charon-cmd 6.0.4-1ubuntu3.2, released September 7, 2026. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2026-78129 - Priority: Routine - CVSS: 5.9 (Moderate) - EPSS: 0.0046 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Sep 7, 2026 - Weakness: Loop with Unreachable Exit Condition ('Infinite Loop') - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78129 ## Description strongSwan 4.6.2 through 6.0.7 has an infinite loop in PKCS#5 decryption. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | charon-cmd Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [charon-cmd 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-charon-cmd-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | charon-cmd Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [charon-cmd 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-charon-cmd-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | charon-cmd Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [charon-cmd 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-charon-cmd-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | charon-systemd Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [charon-systemd 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-charon-systemd-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | charon-systemd Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [charon-systemd 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-charon-systemd-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | charon-systemd Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [charon-systemd 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-charon-systemd-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | libcharon-extauth-plugins Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [libcharon-extauth-plugins 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcharon-extauth-plugins-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | libcharon-extauth-plugins Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [libcharon-extauth-plugins 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libcharon-extauth-plugins-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | libcharon-extauth-plugins Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [libcharon-extauth-plugins 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libcharon-extauth-plugins-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | libcharon-extra-plugins Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [libcharon-extra-plugins 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcharon-extra-plugins-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | libcharon-extra-plugins Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [libcharon-extra-plugins 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libcharon-extra-plugins-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | libcharon-extra-plugins Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [libcharon-extra-plugins 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libcharon-extra-plugins-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | libstrongswan Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [libstrongswan 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libstrongswan-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | libstrongswan Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [libstrongswan 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libstrongswan-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | libstrongswan Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [libstrongswan 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libstrongswan-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | libstrongswan-extra-plugins Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [libstrongswan-extra-plugins 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libstrongswan-extra-plugins-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | libstrongswan-extra-plugins Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [libstrongswan-extra-plugins 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libstrongswan-extra-plugins-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | libstrongswan-extra-plugins Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [libstrongswan-extra-plugins 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libstrongswan-extra-plugins-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | libstrongswan-standard-plugins Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [libstrongswan-standard-plugins 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libstrongswan-standard-plugins-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | libstrongswan-standard-plugins Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [libstrongswan-standard-plugins 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libstrongswan-standard-plugins-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | libstrongswan-standard-plugins Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [libstrongswan-standard-plugins 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libstrongswan-standard-plugins-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | strongswan Debian 12.15 (bookworm) | 5.9.8-5+deb12u6 | [DEBIAN-CVE-2026-78129](https://patchblox.com/security/data/fix/linux/debian-cve-2026-78129.md) | Sep 8, 2026 | | Linux | strongswan Debian 13.5 (trixie) | 6.0.1-6+deb13u7 | [DEBIAN-CVE-2026-78129](https://patchblox.com/security/data/fix/linux/debian-cve-2026-78129.md) | Sep 8, 2026 | | Linux | strongswan Debian 14 | 6.1.0-1 | [DEBIAN-CVE-2026-78129](https://patchblox.com/security/data/fix/linux/debian-cve-2026-78129.md) | Sep 8, 2026 | | Linux | strongswan Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [strongswan 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | strongswan Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [strongswan 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | strongswan Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [strongswan 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | strongswan opensuse-leap 16.0 | 6.0.6-160000.3.1 | [OPENSUSE-SU-2026:22050-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22050-1.md) | Nov 7, 2026 | | Linux | strongswan sles 15.6 | 5.9.12-150600.3.23.2 | [SUSE-SU-2026:4143-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4143-1.md) | Sep 14, 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 | 6.0.6-160000.3.1 | [SUSE-SU-2026:24199-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-24199-1.md) | Nov 7, 2026 | | Linux | strongswan-charon Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [strongswan-charon 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-charon-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | strongswan-charon Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [strongswan-charon 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-charon-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | strongswan-charon Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [strongswan-charon 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-charon-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | strongswan-libcharon Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [strongswan-libcharon 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-libcharon-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | strongswan-libcharon Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [strongswan-libcharon 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-libcharon-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | strongswan-libcharon Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [strongswan-libcharon 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-libcharon-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | strongswan-nm Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [strongswan-nm 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-nm-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | strongswan-nm Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [strongswan-nm 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-nm-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | strongswan-nm Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [strongswan-nm 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-nm-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | strongswan-pki Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [strongswan-pki 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-pki-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | strongswan-pki Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [strongswan-pki 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-pki-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | strongswan-pki Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [strongswan-pki 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-pki-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | strongswan-scepclient Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [strongswan-scepclient 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-scepclient-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | strongswan-starter Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [strongswan-starter 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-starter-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | strongswan-starter Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [strongswan-starter 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-starter-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | strongswan-starter Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [strongswan-starter 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-starter-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | | Linux | strongswan-swanctl Ubuntu 22.04.1 LTS (jammy) | 5.9.5-2ubuntu2.8 | [strongswan-swanctl 5.9.5-2ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-strongswan-swanctl-5.9.5-2ubuntu2.8.md) | Sep 22, 2026 | | Linux | strongswan-swanctl Ubuntu 24.04.5 LTS (noble) | 5.9.13-2ubuntu4.24.04.5 | [strongswan-swanctl 5.9.13-2ubuntu4.24.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-strongswan-swanctl-5.9.13-2ubuntu4.24.04.5.md) | Sep 22, 2026 | | Linux | strongswan-swanctl Ubuntu 26.04.1 LTS (resolute) | 6.0.4-1ubuntu3.2 | [strongswan-swanctl 6.0.4-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-strongswan-swanctl-6.0.4-1ubuntu3.2.md) | Sep 7, 2026 | --- Data as of 2026-11-08T06:59:42Z UTC. 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