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florent-leborgne merged 2 commits into from
Sep 23, 2026
Merged

[Security] 8.19.22 release notes #7203

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c22d673
[Security] 8.19.22 release notes
natasha-moore-elastic Sep 17, 2026
c05893a
Merge branch '8.19' into sec-rn-8.19.22
florent-leborgne Sep 23, 2026
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1 change: 1 addition & 0 deletions docs/release-notes.asciidoc
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This section summarizes the changes in each release.

* <<release-notes-8.19.22, {elastic-sec} version 8.19.22>>
* <<release-notes-8.19.21, {elastic-sec} version 8.19.21>>
* <<release-notes-8.19.20, {elastic-sec} version 8.19.20>>
* <<release-notes-8.19.19, {elastic-sec} version 8.19.19>>
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30 changes: 29 additions & 1 deletion docs/release-notes/8.19.asciidoc
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[[release-notes-header-8.19.0]]
== 8.19

[discrete]
[[release-notes-8.19.22]]
=== 8.19.22

[discrete]
[[enhancements-8.19.22]]
==== Enhancements
* Adds experimental macOS 27 support to {elastic-defend}.

[discrete]
[[bug-fixes-8.19.22]]
==== Fixes
* Fixes detection rules so a search that returns no readable shards is reported as a warning, instead of failing with `expected to find aggregations on search result` ({kibana-pull}290924[#290924]).
* Fixes bulk closing alerts that use a scripted data view runtime field in the filter, including when closing a grouped set of alerts. Previously the action reported 0 updated alerts ({kibana-pull}289549[#289549]).
* Fixes bulk closing all matching alerts so they are updated when the filter uses a data view runtime field. Previously the action reported 0 updated alerts ({kibana-pull}288946[#288946]).
* Fixes the Timeline **Correlation** tab so it shows a warning when EQL results are incomplete because shards timed out or failed ({kibana-pull}287933[#287933]).
* Fixes detection rules so they retry with a smaller page size instead of failing when an event search response is too large ({kibana-pull}287916[#287916]).
* Fixes an issue where Google Gemini 3.x models rejected requests that included tools with unconstrained string parameters ({kibana-pull}286302[#286302]).
* Reduces {elastic-defend} CPU usage and lock contention during network cache cleanup on Linux, preventing event enrichment stalls at high connection counts.
* Increases the {elastic-defend} event buffer size.
* Hardens how {elastic-defend} restores file ownership and permissions during malware quarantine on Linux and macOS.
* Fixes a crash in {elastic-defend} on Windows when processing files or processes whose paths contain CJK (Chinese, Japanese, or Korean) characters.
* Updates a `c-ares` dependency in {elastic-defend} on Linux to resolve https://github.com/c-ares/c-ares/security/advisories/GHSA-mg26-v6qh-x48q[CVE-2024-25629]. The gRPC-bundled `c-ares` snapshot (~1.19) is unchanged and is tracked separately pending a gRPC version upgrade.
* Fixes {elastic-defend} **Endpoint exceptions** and **Trusted applications** so entries that match on `host.name` handle mixed-case values. Previously, an exception with `host.name: "MyServer"` failed to match because {elastic-defend} lowercases `host.name`, while {kib}'s default comparison is case-sensitive.
* Adds a workaround in {elastic-defend} for a macOS 27 bug that could break network connections from apps using `Network.framework`.
* Fixes {elastic-defend} diagnostics bundles generated by the `elastic-endpoint diagnostics` command so they are no longer readable by unprivileged local users on Windows, Linux, and macOS.
* Fixes an issue where {elastic-defend} ignored a cached artifact and treated the lookup as a miss.
* Fixes a memory leak in {elastic-defend} process tracking on hosts with very fast process ID reuse.

[discrete]
[[release-notes-8.19.21]]
=== 8.19.21
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[[bug-fixes-8.19.21]]
==== Fixes
* Fixes an issue where previously applied filters on the **Notes** page were not shown in the filter controls after navigating away and returning, even though the filters were still active ({kibana-pull}286574[#286574]).
* Fixes an issue where Google Gemini 3.x models rejected requests that included tools with unconstrained string parameters ({kibana-pull}286302[#286302]).
* Fixes an issue where detection rule exception items that use **IP range** value lists with more than 200 dash-notation entries were dropped during rule execution ({kibana-pull}285178[#285178]).
* Updates a `curl` dependency in {elastic-defend} to resolve https://github.com/advisories/GHSA-gv3v-x3f3-7fxm[CVE-2024-8096].
* Updates an OpenSSL dependency in {elastic-defend} to resolve multiple CVEs, including https://github.com/advisories/GHSA-f9v2-4w9p-2cwc[CVE-2026-34182] and https://github.com/advisories/GHSA-5888-36j9-c92p[CVE-2025-66199].
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