{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-23520", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-01-13T18:22:43.980Z", "datePublished": "2026-01-15T19:20:22.434Z", "dateUpdated": "2026-01-15T19:58:45.182Z" }, "containers": { "cna": { "title": "Arcane has a Command Injection in Arcane Updater Lifecycle Labels Enables RCE", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-78", "lang": "en", "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/getarcaneapp/arcane/security/advisories/GHSA-gjqq-6r35-w3r8", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/getarcaneapp/arcane/security/advisories/GHSA-gjqq-6r35-w3r8" }, { "name": "https://github.com/getarcaneapp/arcane/pull/1468", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/getarcaneapp/arcane/pull/1468" }, { "name": "https://github.com/getarcaneapp/arcane/commit/5a9c2f92e11f86f8997da8c672844468f930b7e4", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/getarcaneapp/arcane/commit/5a9c2f92e11f86f8997da8c672844468f930b7e4" }, { "name": "https://github.com/getarcaneapp/arcane/releases/tag/v1.13.0", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/getarcaneapp/arcane/releases/tag/v1.13.0" } ], "affected": [ { "vendor": "getarcaneapp", "product": "arcane", "versions": [ { "version": "< 1.13.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-01-15T19:20:22.434Z" }, "descriptions": [ { "lang": "en", "value": "Arcane provides modern docker management. Prior to 1.13.0, Arcane has a command injection in the updater service. Arcane’s updater service supported lifecycle labels com.getarcaneapp.arcane.lifecycle.pre-update and com.getarcaneapp.arcane.lifecycle.post-update that allowed defining a command to run before or after a container update. The label value is passed directly to /bin/sh -c without sanitization or validation. Because any authenticated user (not limited to administrators) can create projects through the API, an attacker can create a project that specifies one of these lifecycle labels with a malicious command. When an administrator later triggers a container update (either manually or via scheduled update checks), Arcane reads the lifecycle label and executes its value as a shell command inside the container. This vulnerability is fixed in 1.13.0." } ], "source": { "advisory": "GHSA-gjqq-6r35-w3r8", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-01-15T19:58:38.291447Z", "id": "CVE-2026-23520", "options": [ { "Exploitation": "none" }, { "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": "2026-01-15T19:58:45.182Z" } } ] } }