Patch Tuesday - October 2026

2026-10-14T07:23:38Z•144d7020c47fd199c4977504be4b60ef5799cdb327bf3bc5d771e4e45843bd61
CVE-2026-104935CVE-2026-21589CVE-2026-96951CVE-2026-97229AtlassianGitLabIvanti Connect SecureMicrosoft Patch TuesdayWindows Shellarbitrary-file-accessauthentication-bypassexploited-in-the-wildknown-exploited-vulnerabilitypatch-managementpublic-proof-of-conceptremote-code-executionzero-day

What happened

Rapid7 reports several high-impact October 2026 vulnerabilities, including exploited zero-days in Ivanti Connect Secure (CVE-2026-104935) and Windows Shell (CVE-2026-96951), a critical unauthenticated GitLab remote-code-execution flaw (CVE-2026-97229), and a critical unauthenticated arbitrary-file-access vulnerability affecting multiple Atlassian Data Center products (CVE-2026-21589). Public exploitation, CISA KEV listing, and public proof-of-concept material make urgent remediation and threat hunting advisable. The feed also includes Microsoft Patch Tuesday coverage, security incident and AI-

Why it matters

A reviewed impact interpretation has not been published for this record.

Evidence and limitations

Source ID
rapid7_blog
Record identifier
144d7020c47fd199c4977504be4b60ef5799cdb327bf3bc5d771e4e45843bd61
Enrichment time
2026-10-14T07:23:38Z
AI-assisted enrichment
Yes

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