How severe is CVE-2018-17196?

CVE-2018-17196 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-17196 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17196?

CVE-2018-17196 affects Apache Kafka. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-17196?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-17196 published?

CVE-2018-17196 was published on 2019-07-11 and last updated on 2026-06-17.

CVE-2018-17196

CVE-2018-17196 is a high-severity vulnerability in Apache Kafka with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apache Kafka
Published: 2019-07-11
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2018-17196?: 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.
How severe is CVE-2018-17196?: CVE-2018-17196 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-17196 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17196?: CVE-2018-17196 affects Apache Kafka. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-17196?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-17196 published?: CVE-2018-17196 was published on 2019-07-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:kafka:*:*:*:*:*:*:*:*

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