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Oracle Critical Security Patch Update May 2026

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

74 CVEs in this release, one square each

Protected by Waratek, exploitedProtected by Waratek, exploitedProtected by WaratekMitigation candidate, exploitedMitigation candidateMitigation candidateNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNo exploit publishedNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicable
Share this chart Oracle Critical Security Patch Update May 2026, one square per CVE: 37 Java CVEs, 3 protected by Waratek, 3 exploited, 37 other CVEs in this release.

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3Protected by Waratek3Mitigation candidate31No exploit published37Not applicable 3Exploited, marked by the ring

No exploit published. For 22 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✕
Overview 1 match · 0 in Waratek scope · 0 protected · 0 exploited · 0 CISA KEV · 0 EPSS ≥ 0.5
1match 0in Waratek scope0.0% 0protected0.0% 0exploited0.0% 0CISA KEV0.0% 0EPSS ≥ 0.50.0%
Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 0 0.0% Outside Waratek scope 0 0.0% Not applicable 1 100.0% Withdrawn CVE 0 0.0%
Critical 0 0.0% High 1 100.0% Medium 0 0.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 1 100.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 0 0.0% Working exploit published 1 100.0% Proof of concept only 0 0.0% Forecast only 0 0.0% No public exploit 0 0.0%
split by peak 1 / month
Not applicable: 1 High: 1 not blocked: 1 Working exploit published: 1
May 261 Not applicable1 High1 not blocked1 Working exploit published1
May 26
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CVE Severity Published▾ Status Exploitation Description
CVE-2026-23918 High 2026-05-04 Not applicable Working exploit published Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.