GHSA-j2q8-xx3q-8fqh

Source

https://github.com/advisories/GHSA-j2q8-xx3q-8fqh

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-j2q8-xx3q-8fqh/GHSA-j2q8-xx3q-8fqh.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-j2q8-xx3q-8fqh

Aliases

CVE-2026-41081

Published

2026-04-27T15:30:52Z

Modified

2026-05-05T22:26:26Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator

Summary

Apache Storm's Improper Handling of TLS Client Authentication Failure Leads to Anonymous Principal Assignment

Details

Improper Handling of TLS Client Authentication Failure Leading to Anonymous Principal Assignment in Apache Storm

Versions Affected: up to 2.8.7

Description: When TLS transport is enabled in Apache Storm without requiring client certificate authentication (the default configuration), the TlsTransportPlugin assigns a fallback principal (CN=ANONYMOUS) if no client certificate is presented or if certificate verification fails. The underlying SSLPeerUnverifiedException is caught and suppressed rather than rejecting the connection.

This fail-open behavior means an unauthenticated client can establish a TLS connection and receive a valid principal identity. If the configured authorizer (e.g., SimpleACLAuthorizer) does not explicitly deny access to CN=ANONYMOUS, this may result in unauthorized access to Storm services. The condition is logged at debug level only, reducing visibility in production.

Impact: Unauthenticated clients may be assigned a principal identity, potentially bypassing authorization in permissive or misconfigured environments.

Mitigation: Users should upgrade to 2.8.7 in which TLS authentication failures are handled in a fail-closed manner.

Users who cannot upgrade immediately should:

Enable mandatory client certificate authentication (nimbus.thrift.tls.client.auth.required: true)
Ensure authorization rules explicitly deny access to CN=ANONYMOUS
Review all ACL configurations for implicit default-allow behavior

Database specific

{
    "cwe_ids":  [
        "CWE-287"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-05-05T22:06:26Z",
    "nvd_published_at":  "2026-04-27T14:16:48Z",
    "severity":  "MODERATE"
}

References

Affected packages

Maven / org.apache.storm:storm-client

Package

Name: org.apache.storm:storm-client; View open source insights on deps.dev
Purl: pkg:maven/org.apache.storm/storm-client

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.8.7

Affected versions

2.*

2.0.0

2.1.0

2.1.1

2.2.0

2.2.1

2.3.0

2.4.0

2.5.0

2.6.0

2.6.1

2.6.2

2.6.3

2.6.4

2.7.0

2.7.1

2.8.0

2.8.1

2.8.2

2.8.3

2.8.4

2.8.5

2.8.6

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-j2q8-xx3q-8fqh/GHSA-j2q8-xx3q-8fqh.json"