Apache Storm: Logviewer follows worker symlinks across topology ACLs (CVE-2026-124495)
When workers run as the topology owner, the Apache Storm Logviewer serves files that a worker has placed in its own log directory as links to other files, allowing users who can submit topologies to read other users' worker logs and files accessible to the Logviewer process.
CVE search metadata
CVE search record: CVE-2026-124495. KEV: no. Product: org.apache.storm:storm-webapp (3.0.0 before 3.2.0). Brief: Apache Storm: Logviewer follows worker symlinks across topology ACLs (CVE-2026-124495). Brief link: https://feed.craftedsignal.io/briefs/2026-11-apache-storm-logviewer-symlink/
Triage facts
Revision 1- Applicability
- org.apache.storm:storm-webapp (3.0.0 before 3.2.0)
- Evidence
- Unknown
- Severity
- Low
- Sources
- 1 public source
- Freshness
- Revision 1Nov 11, 03:38 UTC
- Vulnerabilities
- 1 CVE
- Source quality
- D3Roughly even chance
When workers run as the topology owner, the Logviewer serves files that a worker has placed in its own log directory as links to other files. A user who is allowed to submit topologies can read the worker logs of other users' topologies, and other files the Logviewer process can read.