{“lastseen”:””,”description”:”runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and 1.4.0-rc.2 files, runc would not perform sufficient verification that the source of the bind-mount (i.e., the container’s \/dev\/null) was actually a real \/dev\/null inode when using the container’s \/dev\/null to mask. This exposes two methods of attack: an arbitrary mount gadget, leading to host information disclosure, host denial of service, container escape, or a bypassing of maskedPaths. This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3.”,”published”:”2025-11-06T18:47:47.335Z”,”modified”:”2025-11-06T19:22:22.047Z”,”type”:”cve”,”title”:”runc container escape via \\”masked path\\” abuse due to mount race conditions”,”source”:”GitHub_M”,”references”:”https:\/\/github.com\/opencontainers\/runc\/security\/advisories\/GHSA-9493-h29p-rfm2\\nhttps:\/\/github.com\/opencontainers\/runc\/commit\/1a30a8f3d921acbbb6a4bb7e99da2c05f8d48522\\nhttps:\/\/github.com\/opencontainers\/runc\/commit\/5d7b2424072449872d1cd0c937f2ca25f418eb66\\nhttps:\/\/github.com\/opencontainers\/runc\/commit\/8476df83b534a2522b878c0507b3491def48db9f\\nhttps:\/\/github.com\/opencontainers\/runc\/commit\/db19bbed5348847da433faa9d69e9f90192bfa64″,”id”:”CVE-2025-31133″,”bulletinFamily”:””,”cwe”:[“CWE-61″,”CWE-363″],”cvelist”:null,”sourceData”:”opencontainers runc \\u003c 1.2.8\\nopencontainers runc \\u003e= 1.3.0-rc.1, \\u003c 1.3.3\\nopencontainers runc \\u003e= 1.4.0-rc.1, \\u003c= 1.4.0-rc.3″,”sourceHref”:””,”cvss”:{“score”:7.3,”severity”:”HIGH”,”vector”:”CVSS:4.0\/AV:L\/AC:L\/AT:P\/PR:L\/UI:A\/VC:H\/VI:H\/VA:H\/SC:H\/SI:H\/SA:H”,”version”:”4.0″},”cvss2″:{},”cvss3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””,”cvssV3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””}},”href”:””,”category_name”:”CVE”,”post_link”:””,”product”:”runc”,”version”:”\\u003c 1.2.8″,”vendor”:”opencontainers”,”ai_description”:””,”ai_severity”:””,”ai_vendor”:””,”ai_product”:””,”ai_version”:””,”ai_score”:0}<\/p>\n","protected":false},"excerpt":{"rendered":"
{“lastseen”:””,”description”:”runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,47,12,15,13,7,11,5],"class_list":["post-25037","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-73","tag-exploit","tag-high","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n