{"slug": "openssh-10-4-released", "title": "OpenSSH 10.4 released", "summary": "OpenSSH 10.4 has been released, adding experimental support for a composite post-quantum signature scheme combining ML-DSA 44 and Ed25519. The release also enforces sandbox support on Linux, requiring SECCOMP or NO_NEW_PRIVS to be enabled, or sshd will fail to start.", "body_md": "# OpenSSH 10.4 released\n\nOpenSSH 10.4 has been released. In addition to a number of security\nand bug fixes, there are a few notable changes; this release adds\nexperimental support for a composite post-quantum signature scheme\ncombining ML-DSA 44 and Ed25519 as described in [this\nIETF draft](https://datatracker.ietf.org/doc/draft-miller-sshm-mldsa44-ed25519-composite-sigs/). With 10.4, if OpenSSH is compiled with sandbox support\nit will fail on Linux systems that have not enabled `SECCOMP`\nor `NO_NEW_PRIVS`; prior to this release, ` sshd` would log an error\nbut continue operation. See the\n\n[release notes](https://www.openssh.org/txt/release-10.4)for a full list of changes.", "url": "https://wpnews.pro/news/openssh-10-4-released", "canonical_source": "https://lwn.net/Articles/1081536/", "published_at": "2026-07-06 16:13:19+00:00", "updated_at": "2026-07-07 00:40:27.851659+00:00", "lang": "en", "topics": ["ai-safety", "ai-research"], "entities": ["OpenSSH", "ML-DSA 44", "Ed25519", "IETF"], "alternates": {"html": "https://wpnews.pro/news/openssh-10-4-released", "markdown": "https://wpnews.pro/news/openssh-10-4-released.md", "text": "https://wpnews.pro/news/openssh-10-4-released.txt", "jsonld": "https://wpnews.pro/news/openssh-10-4-released.jsonld"}}