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Flink CVEs

7 CVEs, 2 exploited, 3 protected by Waratek

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Overview 7 matches · 3 protected · 2 exploited · 1 CISA KEV · 2 public PoC · 1 EPSS ≥ 0.5
7matches 3protected42.9% 2exploited28.6% 1CISA KEV14.3% 2public PoC28.6% 1EPSS ≥ 0.514.3%
Protected by Waratek 3 42.9% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 4 57.1%
Critical 1 14.3% High 4 57.1% Medium 2 28.6% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 3 42.9% partly blocked 0 0.0% not blocked 4 57.1% not established 0 0.0% unrecorded 0 0.0%
Exploited 2 28.6% Working exploit published 0 0.0% Proof of concept only 0 0.0% Forecast only 0 0.0% No public exploit 5 71.4%
split by peak 2 / year
No exploit published: 4Protected by Waratek: 3 Medium: 2High: 4Critical: 1 not blocked: 4blocked by ARMR today: 3 No public exploit: 5Exploited: 2
20201 No exploit published1 Medium1 not blocked1 No public exploit1 20212 Protected by Waratek2 Critical1 High1 blocked by ARMR today2 Exploited2 20222 No exploit published2 High2 not blocked2 No public exploit2 20230 20240 20251 Protected by Waratek1 Medium1 blocked by ARMR today1 No public exploit1 20261 No exploit published1 High1 not blocked1 No public exploit1
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CVE Severity Published▾ Status Exploitation Description
CVE-2026-35194 High 2026-05-15 No exploit published No public exploit Code injection in SQL code generation in Apache Flink 1.15.0 through 1.20.x and 2.0.0 through 2.x allows authenticated users with query submission privileges to execute arbitrary code on TaskManagers via maliciously crafted SQL queries. The vulnerability affects JSON functions (1.15.0+) and LIKE expressions with ESCAPE clauses (1.17.0+). User-controlled strings are interpolated into generated Java code without proper escaping, allowing attackers to break out of string literals and inject arbitrary expressions. Users are recommended to upgrade to either version 1.20.4, 2.0.2, 2.1.2 or 2.2.1, which fixes this issue.
CVE-2025-62228 Medium 2025-10-09 Protected by Waratek No public exploit Apache Flink CDC version 3.4.0 was vulnerable to a SQL injection via maliciously crafted identifiers eg. crafted database name or crafted table name. Even through only the logged-in database user can trigger the attack, we recommend users update Flink CDC version to 3.5.0 which address this issue.
CVE-2022-23496 High 2022-12-08 No exploit published No public exploit Yet Another UserAgent Analyzer (Yauaa) is a java library that tries to parse and analyze the useragent string and extract as many relevant attributes as possible. Applications using the Client Hints analysis feature introduced with 7.0.0 can crash because the Yauaa library throws an ArrayIndexOutOfBoundsException. If uncaught the exception will result in a program crash. Applications that do not use this feature are not affected. Users are advised to upgrade to version 7.9.0. Users unable to upgrade may catch and discard any ArrayIndexOutOfBoundsException thrown by the Yauaa library.
CVE-2022-43766 High 2022-10-26 No exploit published No public exploit Apache IoTDB version 0.12.2 to 0.12.6, 0.13.0 to 0.13.2 are vulnerable to a Denial of Service attack when accepting untrusted patterns for REGEXP queries with Java 8. Users should upgrade to 0.13.3 which addresses this issue or use a later version of Java to avoid it.
CVE-2020-17519 Critical 2021-01-05 Protected by Waratek Exploited A change introduced in Apache Flink 1.11.0 (and released in 1.11.1 and 1.11.2 as well) allows attackers to read any file on the local filesystem of the JobManager through the REST interface of the JobManager process. Access is restricted to files accessible by the JobManager process. All users should upgrade to Flink 1.11.3 or 1.12.0 if their Flink instance(s) are exposed. The issue was fixed in commit b561010b0ee741543c3953306037f00d7a9f0801 from apache/flink:master.
CVE-2020-17518 High 2021-01-05 Protected by Waratek Exploited Apache Flink 1.5.1 introduced a REST handler that allows you to write an uploaded file to an arbitrary location on the local file system, through a maliciously modified HTTP HEADER. The files can be written to any location accessible by Flink 1.5.1. All users should upgrade to Flink 1.11.3 or 1.12.0 if their Flink instance(s) are exposed. The issue was fixed in commit a5264a6f41524afe8ceadf1d8ddc8c80f323ebc4 from apache/flink:master.
CVE-2020-1960 Medium 2020-05-14 No exploit published No public exploit A vulnerability in Apache Flink (1.1.0 to 1.1.5, 1.2.0 to 1.2.1, 1.3.0 to 1.3.3, 1.4.0 to 1.4.2, 1.5.0 to 1.5.6, 1.6.0 to 1.6.4, 1.7.0 to 1.7.2, 1.8.0 to 1.8.3, 1.9.0 to 1.9.2, 1.10.0) where, when running a process with an enabled JMXReporter, with a port configured via metrics.reporter.reporter_name>.port, an attacker with local access to the machine and JMX port can execute a man-in-the-middle attack using a specially crafted request to rebind the JMXRMI registry to one under the attacker's control. This compromises any connection established to the process via JMX, allowing extraction of credentials and any other transferred data.