# CVE-2026-124495: Apache Storm: Logviewer follows worker symlinks across topology ACLs

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

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. Users are recommended to upgrade to version 3.2.0, which fixes the issue.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Apache Software Foundation / Apache Storm (org.apache.storm:storm-webapp): ≥ 3.0.0; < 3.2.0 (affected, semver). Source: CNA: apache

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-59

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://lists.apache.org/thread/q4xbld4n4v14t8d74vb342skx8d0mzz8 (CNA: apache; vendor-advisory)

## Provenance

- CNA: apache: https://www.cve.org/CVERecord?id=CVE-2026-124495; retrieved 2026-11-11; source updated 2026-11-11

Revision: 26a10af15a499c726e4a53f4729207a521d3f5cc86816361764d374fad4ba05e

Canonical: https://y2.dev/cve/CVE-2026-124495

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