Resource exhaustion in Zeroae Zae-Limiter
CVE-2026-27695
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.
EPSS: 0.002 (13.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Zeroae Zae-limiter — versions < 0.10.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-27695?
- CVE-2026-27695 is a medium-severity vulnerability in Zeroae Zae-Limiter, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2026-02-25.
- How severe is CVE-2026-27695?
- Medium severity. CVSS v3 base score is 4.3 out of 10.