CVE-2026-27695
zae-limiter: DynamoDB hot partition throttling enables per-entity Denial of Service
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
zae-limiter is a rate limiting library using the token bucket algorithm. Prior to version 0.10.1, all rate limit buckets for a single entity share the same DynamoDB partition key (`namespace/ENTITY#{id}`). A high-traffic entity can exceed DynamoDB's per-partition throughput limits (~1,000 WCU/sec), causing throttling that degrades service for that entity — and potentially co-located entities in the same partition. Version 0.10.1 fixes the issue.
| CWE | CWE-770 |
| Vendor | zeroae |
| Product | zae-limiter |
| Published | Feb 25, 2026 |
| Last Updated | Feb 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
zeroae / zae-limiter
< 0.10.1