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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Trendyol kafka-konsumer unaffected
Version Status Constraints
2.3.3 affected < 2.6.18
2.6.18 unaffected —

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Trendyol/kafka-konsumer/blob/v2.6.17/batch_consumer.go#L204-L264 cve-icon cve-icon
https://github.com/Trendyol/kafka-konsumer/commit/a290c08b81c70c2d5d4e1f40e4997eae34306078 cve-icon cve-icon
https://github.com/Trendyol/kafka-konsumer/releases/tag/v2.6.18 cve-icon cve-icon
https://github.com/Trendyol/kafka-konsumer/security/advisories/GHSA-jjgw-p88q-qrxr cve-icon cve-icon
https://www.vulncheck.com/advisories/trendyol-kafka-konsumer-2.3.3-before-2.6.18-denial-of-service-via-batch-consumer-panic cve-icon cve-icon
History

Sun, 08 Nov 2026 14:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Trendyol kafka-konsumer 2.3.3 before 2.6.18 Denial of Service via Batch Consumer Panic
Weaknesses CWE-617
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-08T13:52:32.959Z

Reserved: 2026-11-08T02:16:30.557Z

Link: CVE-2026-124465

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-08T14:18:14.470

Modified: 2026-11-08T14:18:14.470

Link: CVE-2026-124465

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-08T15:30:16Z

Weaknesses