CVE-2026-124465 json
Trendyol kafka-konsumer 2.3.3 before 2.6.18 Denial of Service via Batch Consumer Panic
published 21d ago modified 2d ago also EUVD-2026-119605 , GHSA-jjgw-p88q-qrxr
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository Trendyol/kafka-konsumer. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Trendyol kafka-konsumer 2.6.18
Is CVE-2026-124465 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2d ago
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- github.com https://github.com/Trendyol/kafka-konsumer/security/advisories/GHSA-jjgw-p88q-qrxr referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | 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 |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 7.1 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- Trendyol kafka-konsumer
Classification
- Weakness
-
- CWE-617 Reachable Assertion
References
-
github.com
/Trendyol/kafka-konsumer/commit/a290c08b81c70c2d5d4e1f40e4997eae34306078
patch
-
github.com
/Trendyol/kafka-konsumer/security/advisories/GHSA-jjgw-p88q-qrxr
vendor-advisory, exploit, advisory
-
github.com
/Trendyol/kafka-konsumer/releases/tag/v2.6.18
release-notes
-
github.com
/Trendyol/kafka-konsumer/blob/v2.6.17/batch_consumer.go#L204-L264
technical-description
-
vulncheck.com
/advisories/trendyol-kafka-konsumer-2.3.3-before-2.6.18-denial-of-service-via-batch-consumer-panic
third-party-advisory
Sources
- CVE List CVE-2026-124465
- NVD CVE-2026-124465
- Maintainer advisory GHSA-jjgw-p88q-qrxr
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of Trendyol/kafka-konsumer published their own advisory on GitHub. Reviewed sources take precedence over it.