CVE-2026-54574

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-54574", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-15T19:15:27.343Z", "datePublished": "2026-07-29T16:32:15.576Z", "dateUpdated": "2026-07-29T19:24:47.953Z"}, "containers": {"cna": {"title": "`proot-distro install` has a Symlink Escape (Arbitrary Host File Write) via Malicious Tar Archive", "problemTypes": [{"descriptions": [{"cweId": "CWE-61", "lang": "en", "description": "CWE-61: UNIX Symbolic Link (Symlink) Following", "type": "CWE"}]}], "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"}}], "references": [{"name": "https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7"}, {"name": "https://github.com/termux/proot-distro/commit/a96d7a9667f38e45d812614852ee3915d1c0ae45", "tags": ["x_refsource_MISC"], "url": "https://github.com/termux/proot-distro/commit/a96d7a9667f38e45d812614852ee3915d1c0ae45"}, {"name": "https://github.com/termux/proot-distro/releases/tag/v5.1.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/termux/proot-distro/releases/tag/v5.1.5"}], "affected": [{"vendor": "termux", "product": "proot-distro", "versions": [{"version": "< 5.1.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-29T16:32:15.576Z"}, "descriptions": [{"lang": "en", "value": "proot-distro is a utility for managing proot containers. Prior to version 5.1.5, proot-distro install extracted plain tarball root filesystems through _extract_plain_tar() in proot_distro/commands/install.py and Docker layers through _apply_layer() in proot_distro/helpers/docker.py without validating archive-controlled symlink targets in member.linkname, allowing a malicious archive to plant an absolute host-path symlink and write files through it onto the host filesystem. This issue is fixed in version 5.1.5."}], "source": {"advisory": "GHSA-9xq3-3fqg-4vg7", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-29T19:13:59.275417Z", "id": "CVE-2026-54574", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-29T19:24:47.953Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-54574", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-07-29T19:13:59.275417Z"}}}], "references": [{"url": "https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-29T19:15:29.505Z"}}], "cna": {"title": "`proot-distro install` has a Symlink Escape (Arbitrary Host File Write) via Malicious Tar Archive", "source": {"advisory": "GHSA-9xq3-3fqg-4vg7", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "termux", "product": "proot-distro", "versions": [{"status": "affected", "version": "< 5.1.5"}]}], "references": [{"url": "https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7", "name": "https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/termux/proot-distro/commit/a96d7a9667f38e45d812614852ee3915d1c0ae45", "name": "https://github.com/termux/proot-distro/commit/a96d7a9667f38e45d812614852ee3915d1c0ae45", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/termux/proot-distro/releases/tag/v5.1.5", "name": "https://github.com/termux/proot-distro/releases/tag/v5.1.5", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "proot-distro is a utility for managing proot containers. Prior to version 5.1.5, proot-distro install extracted plain tarball root filesystems through _extract_plain_tar() in proot_distro/commands/install.py and Docker layers through _apply_layer() in proot_distro/helpers/docker.py without validating archive-controlled symlink targets in member.linkname, allowing a malicious archive to plant an absolute host-path symlink and write files through it onto the host filesystem. This issue is fixed in version 5.1.5."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-61", "description": "CWE-61: UNIX Symbolic Link (Symlink) Following"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-29T16:32:15.576Z"}}}, "cveMetadata": {"cveId": "CVE-2026-54574", "state": "PUBLISHED", "dateUpdated": "2026-07-29T19:24:47.953Z", "dateReserved": "2026-06-15T19:15:27.343Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-07-29T16:32:15.576Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "proot-distro", "vendor": "termux", "versions": [{"status": "affected", "version": "< 5.1.5"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "proot-distro is a utility for managing proot containers. Prior to version 5.1.5, proot-distro install extracted plain tarball root filesystems through _extract_plain_tar() in proot_distro/commands/install.py and Docker layers through _apply_layer() in proot_distro/helpers/docker.py without validating archive-controlled symlink targets in member.linkname, allowing a malicious archive to plant an absolute host-path symlink and write files through it onto the host filesystem. This issue is fixed in version 5.1.5."}, {"lang": "es", "value": "proot-distro es una utilidad para gestionar contenedores proot. Antes de la versi\u00f3n 5.1.5, proot-distro install extra\u00eda sistemas de archivos ra\u00edz de tarballs planos a trav\u00e9s de _extract_plain_tar() en proot_distro/commands/install.py y capas de Docker a trav\u00e9s de _apply_layer() en proot_distro/helpers/docker.py sin validar los destinos de enlaces simb\u00f3licos controlados por el archivo en member.linkname, permitiendo que un archivo malicioso plantara un enlace simb\u00f3lico de ruta absoluta del host y escribiera archivos a trav\u00e9s de \u00e9l en el sistema de archivos del host. Este problema se solucion\u00f3 en la versi\u00f3n 5.1.5."}], "id": "CVE-2026-54574", "lastModified": "2026-10-24T13:10:00.147", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.8, "impactScore": 5.8, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54574", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-07-29T19:13:59.275417Z", "version": "2.0.3"}}]}, "published": "2026-07-29T17:16:52.743", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/termux/proot-distro/commit/a96d7a9667f38e45d812614852ee3915d1c0ae45"}, {"source": "security-advisories@github.com", "url": "https://github.com/termux/proot-distro/releases/tag/v5.1.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-61"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.1.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "proot-distro", "source": "cna", "vendor": "termux"}, "product": "proot-distro", "vendor": "termux"}], "created": "2026-07-30T14:01:54.292677+00:00", "updated": "2026-08-02T08:00:04.657627+00:00", "vendors": ["termux", "termux$PRODUCT$proot-distro"]}