Answer in brief
CVE-2026-82437 records a Medium severity (CVSS 4.3) vulnerability in Apache Storm Logviewer: Log Access Controls Not Enforced by Logviewer. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/Apache Storm Logviewer (generic), Apache Software Foundation/org.apache.storm:storm-webapp (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Apache Software Foundation/Apache Storm Logviewer (generic), Apache Software Foundation/org.apache.storm:storm-webapp (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Apache Software Foundation/Apache Storm Logviewergeneric | >=3.0.0 <3.1.0 | 3.1.0 |
| Apache Software Foundation/org.apache.storm:storm-webappgeneric | >=3.0.0 <3.1.0 | 3.1.0 |
Published upstream
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 14, 2026
Description The Logviewer offers `logs.users` and `logs.groups` so operators can control who may read log content. For daemon logs those settings were not applied: the access decision combined the "this is a daemon log" flag with the authorizer result in a way that discarded the authorizer's answer whenever the flag was set, and the daemon log page and download endpoints reached the handler without consulting an authorizer at all. Any user able to pass the configured servlet filter could therefore read `nimbus.log`, `supervisor.log` and the other daemon logs on every reachable node, which contain other tenants' topology names, owners and configuration fragments. The same advisory covers the log listing endpoints, which accepted a user argument and never applied it, so `/listLogs` and `/searchLogs` returned every tenant's topology and worker log file names regardless of the caller. That part is metadata only. There was no configuration that closed either behaviour. Mitigation Upgrade to 3.1.0, where the daemon log paths evaluate the same configured user and group lists that the worker log paths already used, and the listing endpoints filter by the requesting user. Users who cannot upgrade immediately should place the Logviewer behind a reverse proxy that restricts the daemon log endpoints, and should treat daemon log content as readable by any filter-authenticated user. Credit The ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Storm.
Quoted source text, attributed separately from HOL analysis.