CVE-2026-53777
Perry < 0.5.1159 Path Traversal via ArtifactReady WebSocket
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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 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.
| CWE | CWE-22 |
| Vendor | perryts |
| Product | perry |
| Published | Jun 11, 2026 |
| Last Updated | Jun 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
PerryTS / perry
0 < 0.5.1159
References
github.com: https://github.com/PerryTS/perry/releases/tag/v0.5.1159 github.com: https://github.com/PerryTS/perry/security/advisories/GHSA-x55v-q459-68ch github.com: https://github.com/PerryTS/perry/pull/4989 github.com: https://github.com/PerryTS/perry/commit/95e1043df8081f67038bffce847dd9ddb3dae046 vulncheck.com: https://www.vulncheck.com/advisories/perry-path-traversal-via-artifactready-websocket
Credits
Katriel Moses VulnCheck