{"id":"CVE-2026-53777","title":"Perry < 0.5.1159 Path Traversal via ArtifactReady WebSocket","summary":"Perry before 0.5.1159 contains a path traversal vulnerability that allows a malicious build server to write arbitrary content to any location writable by the running process by supplying unsanitized path components in the artifact_name f…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","cvssSource":"cna","cwe":["CWE-22"],"vendor":"PerryTS","product":"perry","affected":["perry < 0.5.1159"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-06-11T16:10:46.140905Z"},"exploitAvailable":true,"published":"2026-06-11","updated":"2026-11-08","sourceUpdated":"2026-11-08T14:05:04.180Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53777","references":[{"url":"https://github.com/PerryTS/perry/releases/tag/v0.5.1159","label":"perry 0.5.1159 Release Notes"},{"url":"https://github.com/PerryTS/perry/security/advisories/GHSA-x55v-q459-68ch","label":"GitHub Security Advisory (GHSA-x55v-q459-68ch)"},{"url":"https://github.com/PerryTS/perry/pull/4989"},{"url":"https://github.com/PerryTS/perry/commit/95e1043df8081f67038bffce847dd9ddb3dae046"},{"url":"https://www.vulncheck.com/advisories/perry-path-traversal-via-artifactready-websocket"}],"tags":["cve.org","exploit-available"],"epss":0.00467,"epssPercentile":0.40665,"ingestedAt":"2026-11-08T14:51:22.379Z","slug":"CVE-2026-53777","body":"## Overview\n\nPerry before 0.5.1159 contains a path traversal vulnerability that allows a malicious build server to write arbitrary content to any location writable by the running process by supplying unsanitized path components in the artifact_name field of ArtifactReady WebSocket messages. Attackers controlling the server URL can deliver traversal payloads through the artifact_name or download_path fields, causing the client to overwrite sensitive files or expose arbitrary local files to an attacker-accessible location.\n\n## Affected\n\n- `perry < 0.5.1159`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":57,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}