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CVE-2026-40163

Saltcorn path traversal

8.2 HIGHPublic exploitEPSS 0.43%
  1. Published10 Apr 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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityLow
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

Affected products

Saltcorn≥ 1.5.0 < 1.5.5 · < 1.4.5 · 1.6.0

Remediation

Fixed in
Saltcorn≥ 1.5.5

Frequently asked

Is CVE-2026-40163 being actively exploited?

CVE-2026-40163 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.43%.

How severe is CVE-2026-40163?

CVE-2026-40163 has a CVSS 3.1 base score of 8.2, rated high. EPSS estimates a 0.43% probability of exploitation.

Which products are affected by CVE-2026-40163?

Affected products include Saltcorn.

How do I fix CVE-2026-40163?

Upgrade affected software to a fixed version, for example Saltcorn 1.5.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-40163 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.