{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-124465",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-11-08T02:16:30.557Z",
        "datePublished": "2026-11-08T13:52:32.959Z",
        "dateUpdated": "2026-11-08T13:52:32.959Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
                "shortName": "VulnCheck",
                "dateUpdated": "2026-11-08T13:52:32.959Z"
            },
            "datePublic": "2026-10-21T00:00:00.000Z",
            "title": "Trendyol kafka-konsumer 2.3.3 before 2.6.18 Denial of Service via Batch Consumer Panic",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Reachable Assertion",
                            "cweId": "CWE-617",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Trendyol",
                    "product": "kafka-konsumer",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:golang/github.com/Trendyol/kafka-konsumer/v2",
                    "versions": [
                        {
                            "version": "2.3.3",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "2.6.18"
                        },
                        {
                            "version": "2.6.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "metrics": [
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                    "format": "CVSS",
                    "cvssV4_0": {
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                        "vectorString": "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",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 7.1,
                        "baseSeverity": "HIGH"
                    }
                },
                {
                    "format": "CVSS",
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://github.com/Trendyol/kafka-konsumer/security/advisories/GHSA-jjgw-p88q-qrxr",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "name": "GitHub Security Advisory (GHSA-jjgw-p88q-qrxr)"
                },
                {
                    "url": "https://github.com/Trendyol/kafka-konsumer/commit/a290c08b81c70c2d5d4e1f40e4997eae34306078",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/Trendyol/kafka-konsumer/releases/tag/v2.6.18",
                    "tags": [
                        "release-notes"
                    ],
                    "name": "kafka-konsumer v2.6.18 Release Notes"
                },
                {
                    "url": "https://github.com/Trendyol/kafka-konsumer/blob/v2.6.17/batch_consumer.go#L204-L264",
                    "tags": [
                        "technical-description"
                    ]
                },
                {
                    "name": "VulnCheck Advisory: Trendyol kafka-konsumer 2.3.3 before 2.6.18 Denial of Service via Batch Consumer Panic",
                    "tags": [
                        "third-party-advisory"
                    ],
                    "url": "https://www.vulncheck.com/advisories/trendyol-kafka-konsumer-2.3.3-before-2.6.18-denial-of-service-via-batch-consumer-panic"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Efe Kırbaş",
                    "type": "finder"
                }
            ],
            "x_generator": {
                "engine": "vulncheck-endgame"
            }
        }
    }
}