CVE-2026-27695
Plain English Summary
AI-powered analysis for quick understanding
This vulnerability allows an attacker to overwhelm a high-traffic service by exceeding the allowed request limits, which can slow down or disrupt not only that service but also other services sharing the same database resources. This issue occurs when multiple entities use the same database partition key, making it easier for an attacker to cause service degradation if they can generate enough traffic.
Technical Description
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.
CVSS Vector Analysis
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LExploit Resources
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Official References
Quick Information
Published
Feb 25, 2026
about 1 month ago
Last Modified
Feb 26, 2026
about 1 month ago
Vendor
zeroae
Product
zae-limiter