Is CVE-2026-19757 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-19757 being exploited in the wild.

How severe is CVE-2026-19757?

High severity, with a CVSS score of 7.3, published 14 August 2026.

Which products and versions are affected?

Dromara Lamp-Cloud up to 5.10.0.

Is there a fix for CVE-2026-19757?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-19757 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-19757?

Check whether you run Dromara Lamp-Cloud at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-19757: Dromara lamp-cloud path traversal in file upload

CVE-2026-19757 · Severity: high · CVSS 7.3 · Published 2026-08-14

Dromara lamp-cloud is an open-source microservices development platform with multi-tenant capabilities. An unauthenticated attacker can exploit a flaw in the file upload controller to write arbitrary files to any writable location on the server by manipulating path parameters, potentially enabling remote code execution, configuration overwrites, or other system compromise.

Technologies: Dromara Lamp-Cloud. Vendors: Dromara.

Quick answers

Is CVE-2026-19757 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-19757 being exploited in the wild.
How severe is CVE-2026-19757?: High severity, with a CVSS score of 7.3, published 14 August 2026.
Which products and versions are affected?: Dromara Lamp-Cloud up to 5.10.0.
Is there a fix for CVE-2026-19757?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-19757 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-19757?: Check whether you run Dromara Lamp-Cloud at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a path traversal flaw (CWE-22) in the FileAnyoneController's /anyone/file/upload endpoint. The controller concatenates user-supplied bucket and bizType parameters directly into the filesystem path without any canonicalization or traversal filtering, using Paths.get(storagePath, bucket, path). An attacker can inject ../ sequences in either parameter to escape the configured storage root and write files to arbitrary locations. The endpoint requires no URI-level authorization (mapped under /anyone/**) and accepts unauthenticated requests, making exploitation trivial. The attack achieves arbitrary file write, potentially enabling code execution or system configuration tampering.

Affected products

Dromara lamp-cloud up to 5.10.0

Timeline

2026-06-25: disclosed: Issue #412 opened on GitHub
2026-08-14: advisory: CVE-2026-19757 published

References

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