diff --git a/_data/downloads.yml b/_data/downloads.yml
index 6164ba7a79..c1c742dd2c 100644
--- a/_data/downloads.yml
+++ b/_data/downloads.yml
@@ -14,7 +14,7 @@ stable:
 # optional
 security_maintenance:
 
-  - 3.3.12
+  - 3.3.13
 
 # optional
 eol:
diff --git a/_data/releases.yml b/_data/releases.yml
index 571a68b69d..0bbf73c224 100644
--- a/_data/releases.yml
+++ b/_data/releases.yml
@@ -770,6 +770,30 @@
 
 # 3.3 series
 
+- version: 3.3.13
+  date: 2026-10-23
+  post: /en/news/2026/10/23/ruby-3-3-13-released/
+  url:
+    gz:  https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.13.tar.gz
+    zip: https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.13.zip
+    xz:  https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.13.tar.xz
+  size:
+    gz:  21497008
+    zip: 26961541
+    xz:  15878972
+  sha1:
+    gz:  e89379c35cd61b23c7fef6cff9c5bbece4e2c391
+    zip: 4536403d0c1feaa6290fc7d94e65db4bc2b7f0ed
+    xz:  61e8a88d601ca7a4e9f9c30428fa46be0fdf690d
+  sha256:
+    gz:  4cae72e971bd1cdb20ca87d299111182417c5276c162de8ead0ab0531426cd61
+    zip: 8cf1c468af6dbcaa2c48270cc4c951325dabe5fd84b609641d4bd7b89c9d5766
+    xz:  6bd764359992373a96556b45fb7dfe6b6170da34a0a2fd0b7e1be7932fea982b
+  sha512:
+    gz:  0536341f6f612a1eb0128f7d18eed081b09264c695e6a159a5456ba3050464849791ae26e33a7ea384406fa9e19b98bf194c89638dfe2940d3dbeed5b3126c92
+    zip: 622c8b60b2202aea1aa4caed00cee5984109926793ee57c86a9cc39b1628855f51a26d07258aa85aacc679c6186efc4ebf20b5a51f199de7cdd6fcc98a212d10
+    xz:  906e270e2629b44e469265e08d693f996b467a3fc165fbdb9b8f6f7b37effe4fdae9d4968e72a809d1381e35279cb10b6630d40fac31a634981deb4c30ff325c
+
 - version: 3.3.12
   date: 2026-07-16
   post: /en/news/2026/07/16/ruby-3-3-12-released/
diff --git a/en/news/_posts/2026-10-23-ruby-3-3-13-released.md b/en/news/_posts/2026-10-23-ruby-3-3-13-released.md
new file mode 100644
index 0000000000..ff6737c9ec
--- /dev/null
+++ b/en/news/_posts/2026-10-23-ruby-3-3-13-released.md
@@ -0,0 +1,52 @@
+---
+layout: news_post
+title: "Ruby 3.3.13 Released"
+author: hsbt
+translator:
+date: 2026-10-23 04:24:46 +0000
+lang: en
+---
+
+Ruby 3.3.13 has been released.
+
+This release includes security fixes.
+Please check the topics below for details.
+
+* [Security advisories: CVE-2026-80212 and CVE-2026-80213]({% link en/news/_posts/2026-08-27-multiple-vulnerabilities-in-resolv.md %})
+* [Regexp compilation fixes related to GitLab's CVE-2026-89078, CVE-2026-93577, CVE-2026-97229 and CVE-2026-110264]({% link en/news/_posts/2026-10-23-regexp-fixes-for-gitlab-cves.md %})
+
+This release updates the default gem resolv to 0.3.2, which fixes CVE-2026-80212 and CVE-2026-80213.
+
+Ruby 3.3 is in the security maintenance phase. As an exception, this release also includes fixes for bugs in Regexp compilation that GitLab's CVE-2026-89078, CVE-2026-93577, CVE-2026-97229 and CVE-2026-110264 rely on.
+
+Please see the [GitHub releases](https://github.com/ruby/ruby/releases/tag/v3_3_13) for further details.
+
+## Download
+
+{% assign release = site.data.releases | where: "version", "3.3.13" | first %}
+
+* <{{ release.url.gz }}>
+
+      SIZE: {{ release.size.gz }}
+      SHA1: {{ release.sha1.gz }}
+      SHA256: {{ release.sha256.gz }}
+      SHA512: {{ release.sha512.gz }}
+
+* <{{ release.url.xz }}>
+
+      SIZE: {{ release.size.xz }}
+      SHA1: {{ release.sha1.xz }}
+      SHA256: {{ release.sha256.xz }}
+      SHA512: {{ release.sha512.xz }}
+
+* <{{ release.url.zip }}>
+
+      SIZE: {{ release.size.zip }}
+      SHA1: {{ release.sha1.zip }}
+      SHA256: {{ release.sha256.zip }}
+      SHA512: {{ release.sha512.zip }}
+
+## Release Comment
+
+Many committers, developers, and users who provided bug reports helped us make this release.
+Thanks for their contributions.