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Oracle Critical Patch Update April 2026

Released April 2026 · Oracle's advisory ↗ · ← Critical Patch Update, January 2026 · Security Patch Update, May 2026 →

421 CVEs in this release, one square each

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Share this chart Oracle Critical Patch Update April 2026, one square per CVE: 172 Java CVEs, 16 protected by Waratek, 8 exploited, 249 other CVEs in this release.

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16Protected by Waratek4Mitigation candidate152No exploit published10Outside Waratek scope239Not applicable 8Exploited, marked by the ring

No exploit published. For 51 of them, Oracle's security advisory is the source of public detail.

Protected by Waratek. Waratek RASP can block exploitation of these on systems that have not applied the patch yet.

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Columns
Including CVEs outside Waratek scope✕EPSS ≥ 0.5✕
Overview 5 matches · 3 in Waratek scope · 2 protected · 2 exploited · 0 CISA KEV · 3 public PoC
5matches 3in Waratek scope60.0% 2protected40.0% 2exploited40.0% 0CISA KEV0.0% 3public PoC60.0%
Protected by Waratek 2 40.0% Rule in development 0 0.0% Mitigation candidate 1 20.0% No exploit published 0 0.0% Outside Waratek scope 0 0.0% Not applicable 2 40.0% Withdrawn CVE 0 0.0%
Critical 0 0.0% High 5 100.0% Medium 0 0.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 2 40.0% partly blocked 0 0.0% not blocked 3 60.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 2 40.0% Working exploit published 1 20.0% Proof of concept only 0 0.0% Forecast only 2 40.0% No public exploit 0 0.0%
split by peak 2 / quarter
Not applicable: 2Mitigation candidate: 1Protected by Waratek: 2 High: 5 not blocked: 3blocked by ARMR today: 2 Forecast only: 2Working exploit published: 1Exploited: 2
Q1 222 Protected by Waratek2 High2 blocked by ARMR today2 Forecast only2 Q2 220 Q3 220 Q4 220 Q1 230 Q2 230 Q3 230 Q4 230 Q1 240 Q2 240 Q3 241 Not applicable1 High1 not blocked1 Exploited1 Q4 240 Q1 250 Q2 251 Mitigation candidate1 High1 not blocked1 Exploited1 Q3 251 Not applicable1 High1 not blocked1 Working exploit published1
Q1 22Q3 22Q1 23Q3 23Q1 24Q3 24Q1 25Q3 25
5 matches Sign in to download these CVEs as CSV or JSON, or to follow them in a feed.
CVE Severity Published▾ Status Exploitation Description
CVE-2025-6965 High 2025-07-15 Not applicable Working exploit published There exists a vulnerability in SQLite versions before 3.50.2 where the number of aggregate terms could exceed the number of columns available. This could lead to a memory corruption issue. We recommend upgrading to version 3.50.2 or above.
CVE-2025-27817 High 2025-06-10 Mitigation candidate Exploited A possible arbitrary file read and SSRF vulnerability has been identified in Apache Kafka Client. Apache Kafka Clients accept configuration data for setting the SASL/OAUTHBEARER connection with the brokers, including "sasl.oauthbearer.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url". Apache Kafka allows clients to read an arbitrary file and return the content in the error log, or sending requests to an unintended location. In applications where Apache Kafka Clients configurations can be specified by an untrusted party, attackers may use the "sasl.oauthbearer.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url" configuratin to read arbitrary contents of the disk and environment variables or make requests to an unintended location. In particular, this flaw may be used in Apache Kafka Connect to escalate from REST API access to filesystem/environment/URL access, which may be undesirable in certain environments, including SaaS products. Since Apache Kafka 3.9.1/4.0.0, we have added a system property ("-Dorg.apache.kafka.sasl.oauthbearer.allowed.urls") to set the allowed urls in SASL JAAS configuration. In 3.9.1, it accepts all urls by default for backward compatibility. However in 4.0.0 and newer, the default value is empty list and users have to set the allowed urls explicitly.
CVE-2024-6387 High 2024-07-01 Not applicable Exploited A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.
CVE-2022-23307 High 2022-01-18 Protected by Waratek Forecast only CVE-2020-9493 identified a deserialization issue that was present in Apache Chainsaw. Prior to Chainsaw V2.0 Chainsaw was a component of Apache Log4j 1.2.x where the same issue exists.
CVE-2022-23302 High 2022-01-18 Protected by Waratek Forecast only JMSSink in all versions of Log4j 1.x is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration or if the configuration references an LDAP service the attacker has access to. The attacker can provide a TopicConnectionFactoryBindingName configuration causing JMSSink to perform JNDI requests that result in remote code execution in a similar fashion to CVE-2021-4104. Note this issue only affects Log4j 1.x when specifically configured to use JMSSink, which is not the default. Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions.