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VulnerabilityPublished

CVE-2026-124465: Trendyol kafka-konsumer · Reachable Assertion

Affects Trendyol kafka-konsumerSource CVE Database V5

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Not known to be exploited · CVSS 7.1 High : upgrade to 2.6.18 soon.

Data as of 8 Nov 2026, 14:04 UTC

CVSS 4.0 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.07.1
CNA (VulnCheck)CVSS 3.16.5
Patch
Available – fixed in 2.6.18
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.

What to do

Upgrade Trendyol kafka-konsumer to 2.6.18.

Affected software

ProductAffectedFixed in
Trendyolkafka-konsumerAffected
  • >=2.3.3 <2.6.18
Fixed in
  • 2.6.18
Gokafka-konsumerpkg:golang/kafka-konsumerOther threatsAffected
  • >=2.3.3 <2.6.18
Fixed in
  • 2.6.18

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade to Trendyol kafka-konsumer version 2.6.18 or later where the vulnerability is fixed. No other mitigations are specified.

Description

CVE-2026-124465 is a denial of service vulnerability in Trendyol kafka-konsumer versions 2.3.3 up to but not including 2.6.18. The flaw occurs in batch_consumer.go where the consumer panics if a single record exceeds the MessageGroupByteSizeLimit. An attacker able to produce messages to the consumed Kafka topic can send an oversized record that causes the consumer to crash before committing offsets, resulting in a persistent crash loop.

References

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