High
Security advisory
In Apache Kafka versions between 0.11.0.0 and 2.1.0, it is possible to manually craft a Produce request which bypasses transaction/idempotent ACL validation. Only authenticated clients with Write permission on the respective topics are able to exploit this vulnerability. Users should upgrade to 2.1.1 or later where this vulnerability has been fixed.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-17196
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 08:19 UTC · Revision 1
Source evidence
In Apache Kafka versions between 0.11.0.0 and 2.1.0, it is possible to manually craft a Produce request which bypasses transaction/idempotent ACL validation. Only authenticated clients with Write permission on the respective topics are able to exploit this vulnerability. Users should upgrade to 2.1.1 or later where this vulnerability has been fixed.
osv:CVE-2018-17196
Complete source record
{
"id": "d264c6970abd2a51f2aa35d29de70bf0cd5a439dab33c7163596009c69291bd4",
"url": "https://osv.dev/vulnerability/CVE-2018-17196",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-17196",
"summary": "In Apache Kafka versions between 0.11.0.0 and 2.1.0, it is possible to manually craft a Produce request which bypasses transaction/idempotent ACL validation. Only authenticated clients with Write permission on the respective topics are able to exploit this vulnerability. Users should upgrade to 2.1.1 or later where this vulnerability has been fixed.",
"evidence": "osv:CVE-2018-17196",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-17196",
"aliases": [
"CVE-2018-17196",
"GHSA-47w3-66wq-cpxg"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/apache/kafka",
"type": "GIT",
"events": [
{
"introduced": "e18335dd953107a61d89451932de33d33c0fd207"
},
{
"last_affected": "809be928f1ae004e11d65c307ea322bef126c834"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:apache:kafka:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0.11.0.0"
},
{
"last_affected": "2.1.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-17196.json"
}
}
],
"modified": "2026-10-24T10:31:05.827412956Z",
"provider": "osv",
"references": [
"https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f%40%3Cdev.drill.apache.org%3E",
"https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442%40%3Cdev.drill.apache.org%3E",
"https://lists.apache.org/thread.html/d1581fb6464c9bec8a72575c01f5097d68e2fbb230aff24622622a58%40%3Ccommits.kafka.apache.org%3E",
"https://lists.apache.org/thread.html/f9bc3e55f4e28d1dcd1a69aae6d53e609a758e34d2869b4d798e13cc%40%3Cissues.drill.apache.org%3E",
"https://lists.apache.org/thread.html/r66de86b9a608c1da70b2d27d765c11ec88edf6e5dd6f379ab33e072a%40%3Cuser.flink.apache.org%3E",
"https://lists.apache.org/thread.html/r8890b8f18f1de821595792b58b968a89692a255bc20d86d395270740%40%3Ccommits.druid.apache.org%3E",
"https://lists.apache.org/thread.html/rc27d424d0bdeaf31081c3e246db3c66e882243ae3f342dfa845e0261%40%3Ccommits.kafka.apache.org%3E",
"https://www.mail-archive.com/dev%40kafka.apache.org/msg99277.html",
"https://www.oracle.com/security-alerts/cpujul2020.html",
"https://www.oracle.com/security-alerts/cpuoct2020.html"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2018-17196",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 440849,
"published_at": "2019-07-11T21:15:09.53+00:00"
}