CVE-2026-40163

Saltcorn has an Unauthenticated Path Traversal in sync endpoints allows arbitrary file write and directory read

State: Published
Severity: 8.2 High
Published: Apr 10, 2026
Updated: Apr 15, 2026
Reserved: Apr 9, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	8.2 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N	GitHub_M

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
saltcornsaltcorn	< 1.4.5Affected >= 1.5.0-beta.0, < 1.5.5Affected >= 1.6.0-alpha.0, < 1.6.0-beta.4Affected

References

https://github.com/saltcorn/saltcorn/security/advisories/GHSA-32pv-mpqg-h292

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