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NVD description
In Eclipse BaSyx Java Server SDK versions 2.0.0-milestone-05 to 2.0.0-milestone-12, deployments using the MongoDB backend are vulnerable to an unauthenticated arbitrary file write through the AAS thumbnail API. The AAS thumbnail upload path accepted a client-controlled fileName request parameter and passed it through repository file handling as both a repository key and, during thumbnail retrieval, a local filesystem path. With the MongoDB file repository, the supplied filename was treated as an opaque GridFS key and was not normalized or restricted as a filesystem path. A remote attacker could upload thumbnail content using an absolute or traversal-style filename, then trigger thumbnail retrieval so that the uploaded bytes were written to the attacker-chosen path on the server filesystem. This could allow writing files anywhere the Java process has permission to write and may lead to remote code execution. The default InMemory backend is not affected by this specific path because it normalizes and restricts file paths to its temporary directory. The issue is fixed in Eclipse BaSyx Java Server SDK 2.0.0-milestone-13.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-07-14 | 2 | Disclosure1General1 |
| 2026-07-15 | 1 | Disclosure1 |
CVE-2026-57898: Eclipse BaSyx with MongoDB backends lets unauthenticated attackers write arbitrary files via AAS thumbnail API. CVSS 9.0, leads to RCE. Fixed in 2.0.0-milestone-13. https://www.cve.org/CVERecord?id=CVE-2026-57898
Post summary
The tweet discloses a critical Eclipse BaSyx vulnerability enabling unauthenticated file writes and RCE, rated CVSS 9.0, and notes that a patch is available in version 2.0.0‑milestone‑13.
🚨*CVE* CVE-2026-57898 In Eclipse BaSyx Java Server SDK versions 2.0.0-milestone-05 to 2.0.0-milestone-12, deployments using the MongoDB backend are vulnerable to an unauthenticated arbitra… https://www.cve.org/CVERecord?id=CVE-2026-57898 ----- Traducción: CVE-2026-57898 En … http://infoflow.cloud`
Post summary
The tweet references CVE-2026-57898 for Eclipse BaSyx Java Server SDK, noting an unauthenticated vulnerability in MongoDB-backed deployments, but provides no PoC, exploit code, active exploitation claims, or patch information.
CVE-2026-57898 In Eclipse BaSyx Java Server SDK versions 2.0.0-milestone-05 to 2.0.0-milestone-12, deployments using the MongoDB backend are vulnerable to an unauthenticated arbitra… https://www.cve.org/CVERecord?id=CVE-2026-57898
Post summary
CVE-2026-57898 affects Eclipse BaSyx Java Server SDK versions 2.0.0-milestone-05 through 2.0.0-milestone-12 when using MongoDB, allowing unauthenticated arbitrary actions.