Coordinated Vendor Patch Advisories for Enterprise Software and Linux Kernel
The Canadian Centre for Cyber Security issued multiple alerts and advisories urging organizations to apply vendor patches for newly disclosed vulnerabilities across widely deployed enterprise platforms, including Splunk (Enterprise, Cloud Platform, Universal Forwarder, and DB Connect prior to 4.2.0), GitHub Enterprise Server (patched releases 3.19.2, 3.18.5, 3.17.11, 3.16.14, 3.15.18, 3.14.23), Jenkins (Weekly 2.550 and prior; LTS 2.541.1 and prior), and Atlassian products (Bamboo, Confluence, and Crowd Data Center/Server across multiple versions). The advisories are framed as patch-and-mitigate guidance rather than incident reporting, emphasizing rapid update adoption to reduce exposure.
Additional vendor guidance highlighted kernel-level risk and security tooling exposure. Tenable released a critical update for Tenable Security Center (6.7.2 and prior) via stand-alone patches, and Red Hat published multiple advisories (Feb 9–15) including Linux kernel fixes across several RHEL-related offerings (e.g., Red Hat Enterprise Linux and CodeReady Linux Builder). Separately, F5 tracked a Linux kernel vulnerability identified as CVE-2025-22026 in its product advisory, reinforcing the need to prioritize kernel patching where affected components are present.

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How this story unfolded
7 events from the most recent confirmed update back to the earliest known activity.
F5 publishes advisory for Linux kernel CVE-2025-22026
On February 19, 2026, F5 published product advisory K000160079 regarding Linux kernel vulnerability CVE-2025-22026. No additional synopsis details were provided in the reference.
Splunk publishes advisories for multiple product vulnerabilities
On February 18, 2026, Splunk released security advisories for vulnerabilities affecting Splunk Enterprise, Splunk Cloud Platform, Splunk Universal Forwarder, and Splunk DB Connect versions prior to 4.2.0.
Jenkins releases security advisory for Weekly and LTS versions
On February 18, 2026, Jenkins published a security advisory covering vulnerabilities affecting Jenkins Weekly 2.550 and earlier and Jenkins LTS 2.541.1 and earlier.
Atlassian publishes advisories for Bamboo, Confluence, and Crowd
On February 17, 2026, Atlassian released security advisories addressing vulnerabilities in multiple versions of Bamboo Data Center and Server, Confluence Data Center and Server, and Crowd Data Center and Server.
Tenable issues critical Security Center update
On February 17, 2026, Tenable published a security advisory for vulnerabilities in Tenable Security Center, affecting version 6.7.2 and earlier. Stand-alone patches were made available for versions 6.5.1, 6.6.0, and 6.7.2 under SC-202602.1 and SC-202602.2.
GitHub discloses GitHub Enterprise Server vulnerabilities
On February 10, 2026, GitHub published security advisories for vulnerabilities affecting GitHub Enterprise Server release trains 3.14.x through 3.19.x, with patched versions identified for each train.
Red Hat publishes multiple product security advisories
Between February 9 and 15, 2026, Red Hat released security advisories covering vulnerabilities across multiple products, including the Linux kernel, Red Hat Enterprise Linux, and CodeReady Linux Builder.
Related entities
Vulnerabilities, threat actors, malware, products, organizations, and breaches Mallory has linked to this story.
Sources
7 references tracked. Mallory keeps watching after this page renders.
Splunk security advisory (AV26-147) - Canadian Centre for Cyber Security
cyber.gc.ca
Open sourceGitHub security advisory (AV26-146) - Canadian Centre for Cyber Security
cyber.gc.ca
Open sourceLinux kernel vulnerability CVE-2025-22026
my.f5.com
Open sourceJenkins security advisory (AV26-142) - Canadian Centre for Cyber Security
cyber.gc.ca
Open sourceAtlassian security advisory (AV26-141) - Canadian Centre for Cyber Security
cyber.gc.ca
Open sourceTenable security advisory (AV26-137) - Canadian Centre for Cyber Security
cyber.gc.ca
Open sourceRed Hat security advisory (AV26-135) - Canadian Centre for Cyber Security
cyber.gc.ca
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