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TI-2023-24267 Aliases CVE-2023-45277GHSA-w4m2-qmh3-2g8f

Yamcs 5.8.6 is vulnerable to directory traversal (issue 1 of 2).

Priority LOW 35CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-22 and the CVSS impact.

Summary

Yamcs 5.8.6 is vulnerable to directory traversal (issue 1 of 2). The vulnerability is in the storage functionality of the API and allows one to escape the base directory of the buckets, freely navigate system directories, and read arbitrary files.

Why it matters now

EPSS 0.01218 68th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed org.yamcs:yamcs (Maven): 5.8.7

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—org.yamcs:yamcs (Maven)before 5.8.75.8.7Patch availableGHSA-w4m2-qmh3-2g8f
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • org.yamcs:yamcs (Maven) Vendor— Affected before 5.8.7 Fixed in 5.8.7 Patch available GHSA-w4m2-qmh3-2g8f

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:spaceapplications:yamcs:5.8.6:*:*:*:*:*:*:*5.8.6Vulnerableyamcs
  • cpe:2.3:a:spaceapplications:yamcs:5.8.6:*:*:*:*:*:*:* Versions 5.8.6 Vulnerable ·yamcs

Remediation

  • Fix · GHSA-w4m2-qmh3-2g8f org.yamcs:yamcs (Maven) Fixed in 5.8.7 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-45277
  2. 2026-10-03 Alias added: GHSA-w4m2-qmh3-2g8f

References

Exploit 1

Patch 1

Advisory 1

Other 1

  • TI-2026-34240 Yamcs: Remote Code Execution via Mission Database algorithm override CVSS 3.1CRITICAL 9.8
  • TI-2026-32507 Yamcs: No Rate Limiting on Authentication Endpoint CVSS 3.1CRITICAL 9.8
  • TI-2026-34277 Yamcs: Authenticated Remote Code Execution (RCE) via Jython Algorithm Code Injection CVSS 3.1CRITICAL 9.1
  • TI-2026-32532 Yamcs: Server-Side Code Injection (RCE) via Janino Expression Engine in `JavaExprAlgorithmExecutionFactory` CVSS 3.1CRITICAL 9.1
  • TI-2026-40093 Yamcs: Insecure Direct Object Reference (IDOR) in PacketsApi allows unprivileged users to dump all telemetry packets CVSS 3.1MEDIUM 4.3
  • TI-2026-32506 Yamcs: Unauthorized user enumeration via IAM API endpoints CVSS 3.1MEDIUM 4.3
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences