{"id":"CVE-2026-54727","state":"PUBLISHED","title":"proot-distro has a Container Isolation Bypass via Crafted Restore Archive","description":"proot-distro is a utility for managing proot containers. Prior to version 5.1.6, proot-distro restore accepted hardlink entries whose linkname referenced another installed container and did not verify that the hardlink source container matched the destination container being restored, allowing a crafted restore archive to copy files between otherwise isolated containers. This issue is fixed in version 5.1.6.","publishedAt":"2026-07-29T16:41:46.521Z","updatedAt":"2026-07-29T18:07:46.535Z","severity":{"score":8.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["termux proot-distro"],"affected":[{"vendor":"termux","product":"proot-distro","versions":[{"version":"< 5.1.6","status":"affected"}]}],"references":["https://github.com/termux/proot-distro/security/advisories/GHSA-7h3g-4w2f-fj2f","https://github.com/termux/proot-distro/commit/98aff324b7d8500ff75a8ca9ac087ee636be4716","https://github.com/termux/proot-distro/releases/tag/v5.1.6"],"weaknesses":["CWE-668"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54727.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54727","state":"PUBLISHED","datePublished":"2026-07-29T16:41:46.521Z","dateUpdated":"2026-07-29T18:07:46.535Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-15T23:07:33.232Z"},"containers":{"cna":{"title":"proot-distro has a Container Isolation Bypass via Crafted Restore Archive","descriptions":[{"lang":"en","value":"proot-distro is a utility for managing proot containers. Prior to version 5.1.6, proot-distro restore accepted hardlink entries whose linkname referenced another installed container and did not verify that the hardlink source container matched the destination container being restored, allowing a crafted restore archive to copy files between otherwise isolated containers. This issue is fixed in version 5.1.6."}],"affected":[{"vendor":"termux","product":"proot-distro","versions":[{"version":"< 5.1.6","status":"affected"}]}],"references":[{"url":"https://github.com/termux/proot-distro/security/advisories/GHSA-7h3g-4w2f-fj2f","name":"https://github.com/termux/proot-distro/security/advisories/GHSA-7h3g-4w2f-fj2f","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/termux/proot-distro/commit/98aff324b7d8500ff75a8ca9ac087ee636be4716","name":"https://github.com/termux/proot-distro/commit/98aff324b7d8500ff75a8ca9ac087ee636be4716","tags":["x_refsource_MISC"]},{"url":"https://github.com/termux/proot-distro/releases/tag/v5.1.6","name":"https://github.com/termux/proot-distro/releases/tag/v5.1.6","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-668","lang":"en","description":"CWE-668: Exposure of Resource to Wrong Sphere","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-29T16:41:46.521Z"},"source":{"advisory":"GHSA-7h3g-4w2f-fj2f","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/termux/proot-distro/security/advisories/GHSA-7h3g-4w2f-fj2f","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-29T18:07:28.241478Z","id":"CVE-2026-54727","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-29T18:07:46.535Z"}}]}}}