{"id":"CVE-2026-113731","state":"PUBLISHED","title":"djust: Arbitrary absolute-path file read in the find_handlers_for_template MCP tool","description":"djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. From 0.9.0 until 1.0.10, 1.1.7, 1.2.4, and 1.3.0rc8, the find_handlers_for_template MCP tool in python/djust/mcp/server.py accepts an existing absolute template_path and reads it without restricting the resolved path to the project or configured template directories. A local MCP client can use the tool as a file existence and readability oracle and can obtain substrings that match the tool's dj-click, dj-submit, dj-change, dj-input, dj-keydown, or dj-keyup attribute pattern from files readable by the djust process. The maintainer assessment states that the MCP server communicates over local stdio as the same operating-system user and has no network listener, and the tool does not return arbitrary raw file contents. This issue is fixed in versions 1.0.10, 1.1.7, 1.2.4, and 1.3.0rc8.","publishedAt":"2026-10-20T21:31:28.008Z","updatedAt":"2026-10-28T15:54:09.246Z","severity":{"score":3.3,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["djust-org djust"],"affected":[{"vendor":"djust-org","product":"djust","versions":[{"version":">= 0.9.0, < 1.0.10","status":"affected"},{"version":">= 1.1.0, < 1.1.7","status":"affected"},{"version":">= 1.2.0.dev0, < 1.2.4","status":"affected"},{"version":">= 1.3.0.dev0, < 1.3.0rc8","status":"affected"}]}],"references":["https://github.com/djust-org/djust/security/advisories/GHSA-r57g-mc79-8hj2","https://github.com/djust-org/djust/commit/45a5045793ebe7c9c2df86b0ad34275af6822619","https://github.com/djust-org/djust/commit/744bccf699c65c815d9379b36236a7c5592a339b","https://github.com/djust-org/djust/commit/85eed7caaf620bdb08986f2f3bb79432c0d3d715","https://github.com/djust-org/djust/commit/a62caf6b4ef540ad688d4dfdfa407ff914c78728","https://github.com/djust-org/djust/releases/tag/v1.0.10","https://github.com/djust-org/djust/releases/tag/v1.1.7","https://github.com/djust-org/djust/releases/tag/v1.2.4","https://github.com/djust-org/djust/releases/tag/v1.3.0rc8"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/113xxx/CVE-2026-113731.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-113731","state":"PUBLISHED","datePublished":"2026-10-20T21:31:28.008Z","dateUpdated":"2026-10-28T15:54:09.246Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-20T16:03:14.864Z"},"containers":{"cna":{"title":"djust: Arbitrary absolute-path file read in the find_handlers_for_template MCP tool","descriptions":[{"lang":"en","value":"djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. From 0.9.0 until 1.0.10, 1.1.7, 1.2.4, and 1.3.0rc8, the find_handlers_for_template MCP tool in python/djust/mcp/server.py accepts an existing absolute template_path and reads it without restricting the resolved path to the project or configured template directories. A local MCP client can use the tool as a file existence and readability oracle and can obtain substrings that match the tool's dj-click, dj-submit, dj-change, dj-input, dj-keydown, or dj-keyup attribute pattern from files readable by the djust process. The maintainer assessment states that the MCP server communicates over local stdio as the same operating-system user and has no network listener, and the tool does not return arbitrary raw file contents. This issue is fixed in versions 1.0.10, 1.1.7, 1.2.4, and 1.3.0rc8."}],"affected":[{"vendor":"djust-org","product":"djust","versions":[{"version":">= 0.9.0, < 1.0.10","status":"affected"},{"version":">= 1.1.0, < 1.1.7","status":"affected"},{"version":">= 1.2.0.dev0, < 1.2.4","status":"affected"},{"version":">= 1.3.0.dev0, < 1.3.0rc8","status":"affected"}]}],"references":[{"url":"https://github.com/djust-org/djust/security/advisories/GHSA-r57g-mc79-8hj2","name":"https://github.com/djust-org/djust/security/advisories/GHSA-r57g-mc79-8hj2","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/djust-org/djust/commit/45a5045793ebe7c9c2df86b0ad34275af6822619","name":"https://github.com/djust-org/djust/commit/45a5045793ebe7c9c2df86b0ad34275af6822619","tags":["x_refsource_MISC"]},{"url":"https://github.com/djust-org/djust/commit/744bccf699c65c815d9379b36236a7c5592a339b","name":"https://github.com/djust-org/djust/commit/744bccf699c65c815d9379b36236a7c5592a339b","tags":["x_refsource_MISC"]},{"url":"https://github.com/djust-org/djust/commit/85eed7caaf620bdb08986f2f3bb79432c0d3d715","name":"https://github.com/djust-org/djust/commit/85eed7caaf620bdb08986f2f3bb79432c0d3d715","tags":["x_refsource_MISC"]},{"url":"https://github.com/djust-org/djust/commit/a62caf6b4ef540ad688d4dfdfa407ff914c78728","name":"https://github.com/djust-org/djust/commit/a62caf6b4ef540ad688d4dfdfa407ff914c78728","tags":["x_refsource_MISC"]},{"url":"https://github.com/djust-org/djust/releases/tag/v1.0.10","name":"https://github.com/djust-org/djust/releases/tag/v1.0.10","tags":["x_refsource_MISC"]},{"url":"https://github.com/djust-org/djust/releases/tag/v1.1.7","name":"https://github.com/djust-org/djust/releases/tag/v1.1.7","tags":["x_refsource_MISC"]},{"url":"https://github.com/djust-org/djust/releases/tag/v1.2.4","name":"https://github.com/djust-org/djust/releases/tag/v1.2.4","tags":["x_refsource_MISC"]},{"url":"https://github.com/djust-org/djust/releases/tag/v1.3.0rc8","name":"https://github.com/djust-org/djust/releases/tag/v1.3.0rc8","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":3.3,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-20T21:31:28.008Z"},"source":{"advisory":"GHSA-r57g-mc79-8hj2","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/djust-org/djust/security/advisories/GHSA-r57g-mc79-8hj2","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-28T15:53:41.490139Z","id":"CVE-2026-113731","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-28T15:54:09.246Z"}}]}}}