Unchecked vector pre-allocation
Priority LOW 38CWE-400Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-400.
Summary
Affected versions of this crate pre-allocate memory on deserializing raw buffers without checking whether there is sufficient data available. This allows an attacker to do denial-of-service attacks by sending small msgpack messages that allocate gigabytes of memory.
Why it matters now
Fix Fixed rmpv (crates.io): 0.4.2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | rmpv (crates.io) | before 0.4.2 | 0.4.2 | Patch available | GHSA-mcrf-7hf9-f6q5 |
- rmpv (crates.io) Vendor— Affected before 0.4.2 Fixed in 0.4.2 Patch available GHSA-mcrf-7hf9-f6q5
Remediation
- Fix · GHSA-mcrf-7hf9-f6q5 rmpv (crates.io) Fixed in 0.4.2 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-mcrf-7hf9-f6q5
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences