CVE-2026-33558 | Apache Kafka/Kafka Clients up to 3.9.1/4.0.0 log file

VDB-358047 · CVE-2026-33558 · GCVE-0-2026-33558 APACHE KAFKA/KAFKA CLIENTS UP TO 3.9.1/4.0.0 LOG FILE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 2.1 $0-$5k 3.89+ Summaryinfo A vulnerability marked as problematic has been reported in Apache Kafka and Kafka Clients up to 3.9.1/4.0.0. This affects an unknown function. Performing a manipulation results in log file. This vulnerability is reported as CVE-2026-33558. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component. Detailsinfo A vulnerability classified as problematic has been found in Apache Kafka and Kafka Clients up to 3.9.1/4.0.0. This affects an unknown code. The manipulation with an unknown input leads to a log file vulnerability. CWE is classifying the issue as CWE-532. Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information. This is going to have an impact on confidentiality. It is possible to read the advisory at lists.apache.org. This vulnerability is uniquely identified as CVE-2026-33558. The exploitability is told to be difficult. It is possible to initiate the attack remotely. Additional levels of successful authentication are required for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/17/2026). The attack technique deployed by this issue is T1592 according to MITRE ATT&CK. Upgrading to version 3.9.2 or 4.0.1 eliminates this vulnerability. Productinfo Vendor Apache Name Kafka Kafka Clients Version 3.9.0 3.9.1 4.0 License open-source Website Vendor: https://www.apache.org/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 2.2 VulDB Meta Temp Score: 2.1 VulDB Base Score: 2.2 VulDB Temp Score: 2.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Log file CWE: CWE-532 / CWE-200 / CWE-284 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Kafka/Kafka Clients 3.9.2/4.0.1 Timelineinfo 04/17/2026 Advisory disclosed 04/17/2026 +0 days VulDB entry created 04/17/2026 +0 days VulDB entry last update Sourcesinfo Vendor: apache.org Advisory: lists.apache.org Status: Confirmed CVE: CVE-2026-33558 (🔒) GCVE (CVE): GCVE-0-2026-33558 GCVE (VulDB): GCVE-100-358047 Entryinfo Created: 04/17/2026 10:55 Changes: 04/17/2026 10:55 (49), 04/17/2026 10:56 (2) Complete: 🔍 Cache ID: 99:D79:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸