CVE-2026-67229
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
RabbitMQ: Admin-only atom exhaustion: atomize_keys on vhost metadata
RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, add_vhost/2 calls rabbit_data_coercion:atomize_keys/1 (the unsafe variant using binary_to_atom) on the vhost metadata map. The 20 MB management body limit fits ~1M+ short keys. Admin-only. An administrator importing a crafted definitions file can crash the node in a single request: a vhosts entry with ~1M unique metadata keys exhausts the atom table during import. Preconditions include administrator tag. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
rabbitmq-server
- Vendor
- rabbitmq
- Product
- rabbitmq-server
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| >= 3.13.0, < 3.13.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 4.0.0, < 4.0.20 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 4.1.0, < 4.1.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 4.2.0, < 4.2.6 | affected | Unavailable | Unavailable | Unavailable | None listed |