Vulnerability in Trendyol Kafka-Konsumer
CVE-2026-124465
Trendyol kafka-konsumer from 2.3.3 before 2.6.18 contains a denial of service vulnerability in batch_consumer.go that panics when a single record exceeds MessageGroupByteSizeLimit. Attackers able to produce to the consumed topic can publish one oversized record that terminates the consumer before offset commit, causing a persistent crash loop.
Published .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/Trendyol/kafka-konsumer/blob/v2.6.17/batch_consumer.go (technical-description)
- github.com/Trendyol/kafka-konsumer/commit/a290c08b81c70c2d5d4e1f40e4997eae34306… (patch)
- kafka-konsumer v2.6.18 Release Notes (release-notes)
- GitHub Security Advisory (GHSA-jjgw-p88q-qrxr) (vendor-advisory)
- VulnCheck Advisory: Trendyol kafka-konsumer 2.3.3 before 2.6.18 Denial of Service via Batch Consumer Panic (third-party-advisory)
Frequently asked questions
- What is CVE-2026-124465?
- CVE-2026-124465 is a medium-severity vulnerability in Trendyol Kafka-Konsumer, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-11-08.
- How severe is CVE-2026-124465?
- Medium severity. CVSS v3 base score is 6.5 out of 10.