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Oracle Critical Patch Update October 2026

Released October 2026 · Oracle's advisory ↗ · ← Security Patch Update, September 2026

1,693 CVEs in this release, one square each

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Share this chart Oracle Critical Patch Update October 2026, one square per CVE: 1,131 Java CVEs, 21 protected by Waratek, 5 exploited, 562 other CVEs in this release.

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By status

21Protected by Waratek1Mitigation candidate1,109No exploit published13Outside Waratek scope549Not applicable 5Exploited, marked by the ring

No exploit published. For 858 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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Including CVEs outside Waratek scope✕EPSS ≥ 0.5✕
Overview 5 matches · 3 in Waratek scope · 2 protected · 2 exploited · 2 CISA KEV · 4 public PoC
5matches 3in Waratek scope60.0% 2protected40.0% 2exploited40.0% 2CISA KEV40.0% 4public PoC80.0%
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0 0.0% Mitigation candidate 1 20.0% No exploit published 0 0.0% Outside Waratek scope 1 20.0% Not applicable 1 20.0% Withdrawn CVE 0 0.0%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 2 40.0% Forecast only 0 0.0% No public exploit 0 0.0%
split by peak 2 / quarter
Not applicable: 1Outside Waratek scope: 1Mitigation candidate: 1Protected by Waratek: 2 High: 5 not blocked: 3blocked by ARMR today: 2 Proof of concept only: 2Working exploit published: 1Exploited: 2
Q3 221 Protected by Waratek1 High1 blocked by ARMR today1 Proof of concept only1 Q4 220 Q1 230 Q2 230 Q3 230 Q4 232 Mitigation candidate1 Not applicable1 High2 not blocked2 Exploited1 Proof of concept only1 Q1 240 Q2 241 Outside Waratek scope1 High1 not blocked1 Working exploit published1 Q3 240 Q4 240 Q1 250 Q2 250 Q3 250 Q4 250 Q1 260 Q2 261 Protected by Waratek1 High1 blocked by ARMR today1 Exploited1
Q4 22Q2 23Q4 23Q2 24Q4 24Q2 25Q4 25Q2 26
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-2026-34486 High 2026-04-09 Protected by Waratek Exploited Missing Encryption of Sensitive Data vulnerability in Apache Tomcat due to the fix for CVE-2026-29146 allowing the bypass of the EncryptInterceptor. This issue affects Apache Tomcat: 11.0.20, 10.1.53, 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.
CVE-2024-4367 High 2024-05-14 Outside Waratek scope Working exploit published A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution in the PDF.js context. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
CVE-2023-43622 High 2023-10-23 Not applicable Proof of concept only An attacker, opening a HTTP/2 connection with an initial window size of 0, was able to block handling of that connection indefinitely in Apache HTTP Server. This could be used to exhaust worker resources in the server, similar to the well known "slow loris" attack pattern. This has been fixed in version 2.4.58, so that such connection are terminated properly after the configured connection timeout. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.57. Users are recommended to upgrade to version 2.4.58, which fixes the issue.
CVE-2023-44487 High 2023-10-10 Mitigation candidate Exploited The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
CVE-2022-34169 High 2022-07-19 Protected by Waratek Proof of concept only The Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt Java class files generated by the internal XSLTC compiler and execute arbitrary Java bytecode. Users are recommended to update to version 2.7.3 or later. Note: Java runtimes (such as OpenJDK) include repackaged copies of Xalan.