Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 0.3.9, the Logto Tunnel npm package enabled createStaticFileProxy from packages/tunnel/src/commands/tunnel/index.ts and passed request.url from static asset requests through packages/tunnel/src/commands/tunnel/utils.ts using path.join(staticPath, request.url) and then fs.open(requestPath, "r") without URL normalization or a containment check. When --experience-path was enabled and the tunnel port was reachable, an unauthenticated requester could send a path containing ../ to createStaticFileProxy and read files outside the configured static directory that were readable by the logto-tunnel process. The service used server.listen(port), which could expose the tunnel to other hosts depending on the platform and deployment. This issue is fixed in version 0.3.9.
Project Subscriptions
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Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-rxjr-6c9q-h67x | logto-tunnel serves files outside --experience-path via path traversal |
Fixes
Solution
No solution given by the vendor.
Workaround
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References
History
Wed, 19 Aug 2026 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 0.3.9, the Logto Tunnel npm package enabled createStaticFileProxy from packages/tunnel/src/commands/tunnel/index.ts and passed request.url from static asset requests through packages/tunnel/src/commands/tunnel/utils.ts using path.join(staticPath, request.url) and then fs.open(requestPath, "r") without URL normalization or a containment check. When --experience-path was enabled and the tunnel port was reachable, an unauthenticated requester could send a path containing ../ to createStaticFileProxy and read files outside the configured static directory that were readable by the logto-tunnel process. The service used server.listen(port), which could expose the tunnel to other hosts depending on the platform and deployment. This issue is fixed in version 0.3.9. | |
| Title | logto-tunnel serves files outside --experience-path via path traversal | |
| Weaknesses | CWE-22 | |
| References |
| |
| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-19T19:47:05.155Z
Reserved: 2026-07-15T22:13:00.721Z
Link: CVE-2026-63188
No data.
Status : Received
Published: 2026-08-19T20:17:20.230
Modified: 2026-08-19T20:17:20.230
Link: CVE-2026-63188
No data.
OpenCVE Enrichment
No data.
Weaknesses
Github GHSA