In January 2024, CVE-2024-21626 showed that a file descriptor leak in runc (the standard container runtime) allowed containers to access the host filesystem. The container’s mount namespace was intact — the escape happened through a leaked fd that runc failed to close before handing control to the container. In 2025, three more runc CVEs (CVE-2025-31133, CVE-2025-52565, CVE-2025-52881) demonstrated mount race conditions that allowed writing to protected host paths from inside containers.
Nature, Published online: 24 February 2026; doi:10.1038/d41586-026-00298-1
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Фото: Александр Вильф / РИА Новости
Рольф Мютцених. Фото: Liesa Johannssen / Reuters
（三）自境外单位或者个人购进服务、无形资产或者境内不动产取得的完税凭证上列明的增值税税额；