VDB
CVE-2026-63337
CVE-2026-63337
PUBLISHED
CVSS 9 CRITICAL
RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading
EPSS 0.56% · 46.3th percentile
Risk Scores
CVSS 3.1
9
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
EPSS Score
0.56%
46.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| chainguard | nuxeo-2023 | 0 |
| chainguard | conductor-fips | 0 |
| chainguard | logstash-9.5 | 0 |
| chainguard | conductor | 0 |
| chainguard | logstash-9.4 | 0 |
| chainguard | zipkin | 0 |
| chainguard | logstash-8.19 | 0 |
| wolfi | zipkin | 0 |
| chainguard | thingsboard | 0 |
| rabbitmq | rabbitmq-java-client | 0 |
| chainguard | logstash-fips-9.4 | 0 |
| wolfi | druid | 0, 0 |
| chainguard | cassandra-reaper | 0 |
| chainguard | logstash-9.2 | 0 |
| chainguard | druid | 0, 0 |
| chainguard | traccar-fips | 0 |
| wolfi | logstash-9.4 | 0 |
| wolfi | cassandra-reaper | 0 |
| Maven | com.rabbitmq:amqp-client | 0 |
| wolfi | thingsboard | 0 |
…and 2 more
Timeline
- Aug 18, 2026 CVE Published
- Aug 22, 2026 Coalition ESS Score
- Aug 24, 2026 EPSS Score
- Aug 27, 2026 EPSS Score
- Sep 2, 2026 EPSS Score
- Sep 5, 2026 Security Advisory
- Sep 6, 2026 EPSS Score
- Sep 9, 2026 EPSS Score
- Sep 12, 2026 EPSS Score
- Sep 16, 2026 EPSS Score
- Sep 18, 2026 EPSS Score
- Sep 24, 2026 EPSS Score
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-63337 advisory
- https://github.com/advisories/GHSA-6g32-pxv4-2wfj advisory
- https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-6g32-pxv4-2wfj url
- https://github.com/rabbitmq/rabbitmq-java-client/pull/2000 patch
- https://github.com/rabbitmq/rabbitmq-java-client/pull/2002 patch
- https://github.com/rabbitmq/rabbitmq-java-client/commit/0032f75f9dc3df847f94b2b85a16119250bf63cb patch
- https://github.com/rabbitmq/rabbitmq-java-client/commit/9f8e7efd0c648f235dc0e96232ae7efa75ea4fa8 patch
- https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.33.0 url