CVE-2026-40163
High
Description
Saltcorn is an extensible, open source, no-code database application builder. Prior to 1.4.5, 1.5.5, and 1.6.0-beta.4, the POST /sync/offline_changes endpoint allows an unauthenticated attacker to create arbitrary directories and write a changes.json file with attacker-controlled JSON content anywhere on the server filesystem. The GET /sync/upload_finished endpoint allows an unauthenticated attacker to list arbitrary directory contents and read specific JSON files. This vulnerability is fixed in 1.4.5, 1.5.5, and 1.6.0-beta.4.
SeverityHigh
CVSS8.2
Exploit probability—
ProductSaltcorn
PublishedApr 10, 2026
First seenApr 10, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- saltcorn saltcorn1.4.5, 1.5.5 or later
- @saltcorn/server1.4.5, 1.5.5, 1.6.0-beta.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| saltcorn saltcorn | v < 1.4.5, 1.5.0 ≤ v < 1.5.5, 1.6.0 | 1.4.5, 1.5.5 |
| @saltcorn/servernpm | v < 1.4.5, 1.5.0-beta.0 ≤ v < 1.5.5, 1.6.0-alpha.0 ≤ v < 1.6.0-beta.4 | 1.4.5, 1.5.5, 1.6.0-beta.4 |
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