Malcolm v26.06.0 is primarily a security hardening release, addressing fifteen vulnerabilities (2 high severity, 6 medium, and 7 low) identified in a security assessment. Bug fixes address an issue with the zeek container causing performance degredation over time and a fix for duplicate virtual machine entries in NetBox autopopulation. A few component versions have also been updated.

If you are upgrading from an existing Malcolm installation, run ./scripts/status for Malcolm to migrate some settings prior to running ./scripts/configure, ./scripts/start, or other Malcolm control scripts.

https://github.com/idaholab/Malcolm/compare/v26.05.2...v26.06.0

• 🛡️ Security Remediation & Hardening (#996)
  • Unauthenticated reflected XSS / open redirect in /dashboards/app/refred; also added Content-Security-Policy framing headers (frame-ancestors, base-uri, form-action) and X-Frame-Options: SAMEORIGIN globally to mitigate clickjacking (#997)
  • Authenticated command injection in filebeat container via SFTP-uploaded filename (#998)
  • Password stored as MD5-crypt for SFTP (#1009)
  • Authenticated archive zip-slip file write in filebeat container (#999)
  • OpenSearch path injection via /mapi/fields?template (#1000)
  • submit.php Location: open redirect via Referer (#1007)
  • htadmin proxied with no nginx auth gate (#1003)
  • Keycloak OIDC ssl_verify always set to false (#1006)
  • NetBox SUPERUSER_PASSWORD=admin shipped default (#1011)
  • RBAC defaultdict(lambda: True) fail-open for unlisted handlers in Malcolm API (#1004)
  • Read-only Arkime deny-regex omits addtags/removetags (#1008)
  • Read-only deployment allows POST /mapi/event (#1002)
  • WISE auth path selectable by client User-Agent (#1001)
  • ARKIME_PASSWORD_SECRET=Malcolm shipped default (#1005)
  • requests CVE bump reverted in logstash image (#1010)
  • Fix API auth errors and hide NGINX version disclosure (#989)
• 🐛 Bug fixes
  • auto-discovered Virtual Machines in NetBox seem to allow for duplicates (#978)
  • Ensure list of archive file types supported by Malcolm for uploading Zeek logs (application/gzip,application/vnd.rar,application/x-7z-compressed,application/x-bzip2,application/x-cpio,application/x-gzip,application/x-lzip,application/x-lzma,application/x-rar-compressed,application/x-tar,application/x-xz,application/zip) are consistently used across the platform.
  • zeek container continually grows /usr/local/zeek/crontab, causing Malcolm performance to gradually worsen (#1015)
• ✅ Component version updates
  • Filebeat to v9.4.2
  • Fluent Bit to v5.0.6
  • Logstash to v9.4.2
  • Supercronic to v0.2.46
  • uv to v0.11.15
• 🧹 Code and project maintenance
  • Fixed some incorrect links in documentation (#988, thanks @jsoref)
  • Refactored NGINX error pages configuration into its own include file and added a 401.html page
• 📄 Configuration changes for Malcolm (in environment variables in ./config/). The Malcolm control script (e.g., ./scripts/status, ./scripts/start) automatically handles creation and migration of variables according to ./config/env-var-actions.yml.
  • Added KEYCLOAK_SSL_VERIFY (default false) to keycloak.env for #1006
  • The Arkime password hash secret ARKIME_PASSWORD_SECRET in arkime-secret.env no longer has a default value: it must be set during auth_setup (for #1005)
  • The Netbox superuser password SUPERUSER_PASSWORD in netbox-secret.env no longer has a default value: it must be set during auth_setup (for #1011)

Malcolm is a powerful, easily deployable network 🖧 traffic analysis tool suite for network security monitoring 🕵🏻‍♀️.

Malcolm operates as a cluster of containers 📦, isolated sandboxes which each serve a dedicated function of the system. This makes Malcolm deployable with frameworks like Docker 🐋, Podman 🦭, and Kubernetes ⎈. Check out the Quick Start guide for examples on how to get up and running.

Alternatively, dedicated official ISO installer images 💿 for Malcolm and Hedgehog Linux 🦔 can be downloaded from Malcolm's releases page on GitHub. Due to limits on individual files in GitHub releases, these ISO files have been split 🪓 into 2GB chunks and can be reassembled with scripts provided for both Bash 🐧 (release_cleaver.sh) and PowerShell 🪟 (release_cleaver.ps1). See Downloading Malcolm - Installer ISOs for instructions.

As always, join us on the Malcolm discussions board 💬 to engage with the community, or pop some corn 🍿 and watch a video 📼.

#Malcolm #HedgehogLinux #Zeek #Arkime #Strelka #NetBox #OpenSearch #Elasticsearch #Suricata #PCAP #NetworkTrafficAnalysis #networksecuritymonitoring #OT #ICS #icssecurity #CyberSecurity #Cyber #Infosec #INL

Step-by-Step Guide to Install #NetBox on #Ubuntu VPS

This article provides a step-by-step guide to install NetBox on Ubuntu VPS server.
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NetBox is a powerful and versatile open-source tool that allows you to efficiently manage your network infrastructure. In this comprehensive guide, we will walk you through the process to install NetBox on Ubuntu VPS. ...
Continued 👉 https://blog.radwebhosting.com/install-netbox-on-ubuntu-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #selfhosting #letsencrypt #selfhosted #opensource #ipaddressmanagement #installguide

Step-by-Step Guide to Install #NetBox on #Ubuntu VPS

This article provides a step-by-step guide to install NetBox on Ubuntu VPS server.
What is NetBox?
NetBox is a powerful and versatile open-source tool that allows you to efficiently manage your network infrastructure. In this comprehensive guide, we will walk you through the process to install NetBox on Ubuntu VPS. ...
Continued 👉 https://blog.radwebhosting.com/install-netbox-on-ubuntu-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #installguide #letsencrypt #ipaddressmanagement #selfhosting #selfhosted #opensource

Step-by-Step Guide to Install #NetBox on #Ubuntu VPS

This article provides a step-by-step guide to install NetBox on Ubuntu VPS server.
What is NetBox?
NetBox is a powerful and versatile open-source tool that allows you to efficiently manage your network infrastructure. In this comprehensive guide, we will walk you through the process to install NetBox on Ubuntu VPS. ...
Continued 👉 https://blog.radwebhosting.com/install-netbox-on-ubuntu-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #opensource #letsencrypt #selfhosting #selfhosted #installguide #ipaddressmanagement

Malcolm v26.05.2 is out?!? What, already? Déjà vu? We bumped up to the timetable on this release as a critical vulnerability found in NGINX made it expedient for us to do so.

Malcolm v26.05.2 focuses heavily on security updates, most notably upgrading OpenResty to address a critical NGINX remote code execution heap buffer overflow vulnerability. It also adds new Suricata OT detections for D-Link HNAP abuse, improves alerting webhook support, introduces the File Tree dashboard, and includes Suricata parsing/mapping fixes and documentation updates. Several other components received version bumps as well.

If you are upgrading from an existing Malcolm installation, run ./scripts/status for Malcolm to migrate some settings prior to running ./scripts/configure, ./scripts/start, or other Malcolm control scripts.

https://github.com/idaholab/Malcolm/compare/v26.05.0...v26.05.2

• ✨ Features and enhancements
  • Improvements to alerting loopback webhook API endpoint (#971) (see also this discussion)
  • Add Suricata OT rules for D-Link HNAP abuse detection (#969) (Suricata detection for GHSA-m69q-2cfc-q63c / CVE-2026-8260; thanks @sercanokur)
  • Added the File Tree visualization dashboard which presents a hierarchical breakdown of files observed in network traffic, particularly with regards to archived files such as ZIP files or tarballs, allowing parent/child relationships between nested files to be explored. (thanks @sbhiens25)
• ✅ Component version updates
  • Filebeat to v9.4.1
  • Fluent Bit to v5.0.5
  • GitPython to v3.1.50 to address high vulnerabilities CVE-2026-44244, CVE-2026-44243, and CVE-2026-42284
  • Logstash to v9.4.1
  • NetBox to v4.5.x (#955)
    • This is a major NetBox release, up from v4.4.10. It's recommended that you back up your NetBox database before upgrading.
    • these NetBox plugins were also updated:
      • netbox-initializers to v4.5.1
      • netbox-topology-views to v4.5.1
      • Device-Type-Library-Import switched to marcinpsk/Device-Type-Library-Import fork
    • thanks to @boscard in this discussion for some tips on running NetBox docker on a base path.
  • OpenResty to v1.29.2.4, which, in addition to other fixes and changes, addresses the following CVEs
    • critical: RCE heap buffer overflow vulnerability in NGINX CVE-2026-42945 (#976)
    • high: Buffer overflow in ngx_http_dav_module CVE-2026-27654
    • high: Buffer overflow in the ngx_http_mp4_module CVE-2026-27784
    • high: Buffer overflow in the ngx_http_mp4_module CVE-2026-32647
    • high: NULL pointer dereference while using CRAM-MD5 or APOP CVE-2026-27651
    • medium: Injection in auth_http and XCLIENT CVE-2026-28753
    • medium: OCSP result bypass in stream CVE-2026-28755
    • high: SSL upstream injection CVE-2026-1642
  • urllib3 to v2.7.0 to address high vulnerabilities CVE-2026-44431 and CVE-2026-44432
• 🐛 Bug fixes
  • Reference Counting (Use-After-Free) Bug for PyList_SetItem in filescan's python-statfs (#960 #962)
  • Added a few missing Suricata fields (suricata.tc_progress, suricata.ts_progress, suricata.tunnel.pcap_cnt, suricata.tunnel.pkt_src) to the index mapping template
  • When suricata.app_proto_ts and/or suricata.app_proto_tc reported that protocol parsing had failed (due to malformed input data), invalid data could be stored in HTTP, DNS, and/or TLS fields. This is now detected and those invalid values are dropped, and some combination of proto_parse_failed, client_stream_failed, or server_stream_failed are added to tags.
  • Suricata's HTTP version was not being normalized to network.protocol_version.
• 🧹 Code and project maintenance
  • Added Malcolm Dashboard Reference to documentation
  • Completely rewrote Upgrading Malcolm in documentation
  • Updated links to protocols page in documentation for new Arkime protocol support (thanks @awick)

Malcolm is a powerful, easily deployable network 🖧 traffic analysis tool suite for network security monitoring 🕵🏻‍♀️.

Malcolm operates as a cluster of containers 📦, isolated sandboxes which each serve a dedicated function of the system. This makes Malcolm deployable with frameworks like Docker 🐋, Podman 🦭, and Kubernetes ⎈. Check out the Quick Start guide for examples on how to get up and running.

Alternatively, dedicated official ISO installer images 💿 for Malcolm and Hedgehog Linux 🦔 can be downloaded from Malcolm's releases page on GitHub. Due to limits on individual files in GitHub releases, these ISO files have been split 🪓 into 2GB chunks and can be reassembled with scripts provided for both Bash 🐧 (release_cleaver.sh) and PowerShell 🪟 (release_cleaver.ps1). See Downloading Malcolm - Installer ISOs for instructions.

As always, join us on the Malcolm discussions board 💬 to engage with the community, or pop some corn 🍿 and watch a video 📼.

#Malcolm #HedgehogLinux #Zeek #Arkime #Strelka #NetBox #OpenSearch #Elasticsearch #Suricata #PCAP #NetworkTrafficAnalysis #networksecuritymonitoring #OT #ICS #icssecurity #CyberSecurity #Cyber #Infosec #INL

Step-by-Step Guide to Install #NetBox on #Ubuntu VPS

This article provides a step-by-step guide to install NetBox on Ubuntu VPS server.
What is NetBox?
NetBox is a powerful and versatile open-source tool that allows you to efficiently manage your network infrastructure. In this comprehensive guide, we will walk you through the process to install NetBox on Ubuntu VPS. ...
Continued 👉 https://blog.radwebhosting.com/install-netbox-on-ubuntu-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #selfhosting #opensource #installguide #ipaddressmanagement #selfhosted #letsencrypt

Step-by-Step Guide to Install #NetBox on #Ubuntu VPS

This article provides a step-by-step guide to install NetBox on Ubuntu VPS server.
What is NetBox?
NetBox is a powerful and versatile open-source tool that allows you to efficiently manage your network infrastructure. In this comprehensive guide, we will walk you through the process to install NetBox on Ubuntu VPS. ...
Continued 👉 https://blog.radwebhosting.com/install-netbox-on-ubuntu-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #letsencrypt #selfhosting #installguide #ipaddressmanagement #opensource #selfhosted

Step-by-Step Guide to Install #NetBox on #Ubuntu VPS

This article provides a step-by-step guide to install NetBox on Ubuntu VPS server.
What is NetBox?
NetBox is a powerful and versatile open-source tool that allows you to efficiently manage your network infrastructure. In this comprehensive guide, we will walk you through the process to install NetBox on Ubuntu VPS. ...
Continued 👉 https://blog.radwebhosting.com/install-netbox-on-ubuntu-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #opensource #ipaddressmanagement #selfhosted #installguide #letsencrypt #selfhosting

Malcolm v26.05.0 delivers a mix of feature improvements, performance improvements, bug fixes, dependency updates, and deployment refinements across Malcolm and Hedgehog for both Docker- and Kubernetes-based workflows.

If you are upgrading from an existing Malcolm installation, run ./scripts/status for Malcolm to migrate some settings prior to running ./scripts/configure, ./scripts/start, or other Malcolm control scripts.

https://github.com/idaholab/Malcolm/compare/v26.04.1...v26.05.0

• ✨ Features and enhancements
  • #726 — use hierarchical structure for NetBox device roles
    • Expanded/reworked NetBox preloaded device roles into a hierarchical taxonomy (thanks Crubumble)
  • #867 — examine large chown'ed directories in container images and see if they can be reduced
  • #954 — allow users to provide custom netbox scripts to be automatically registered on startup (thanks PrudhviChanda)
    • Added NetBox custom script support in the container/runtime and docs, including bind-mounting ./netbox/custom-scripts and automatic script registration at startup
    • Renamed NetBox startup/control scripts from netbox/scripts to netbox/control-scripts
  • Added file.strings extraction/indexing/search support across Strelka → Logstash → OpenSearch templates (wildcard field mapping type) → Arkime/WISE
  • Added configurable Zeek file analyzer timeout via ZEEK_FILE_ANALYZER_TIMEOUT_SEC
  • netdev users in ISO-installed environment can run nmcli and nmtui to configure network interfaces.
  • the malcolm_appliance_packager.sh script that creates a tarball of Malcolm images can now package for both Malcolm and Hedgehog profiles.
• ✅ Component version updates
  • Arkime to v6.3.1
  • cryptography to v46.0.7
  • Filebeat OSS to v9.3.4
  • Fluent Bit to v5.0.4
  • GitPython to v3.1.47
  • Keycloak to v26.6
  • Logstash OSS to v9.2.8
  • OpenSearch and Opensearch Dashboards to v3.6.0
  • opensearch-py to v3.2.0
  • pillow to v12.2.0
  • python-dotenv to v1.2.2
  • Supercronic to v0.2.45
  • yq to v4.53.2
  • Zeek to v8.1.2
• 🐛 Bug fixes
  • #757 — multiple OpenSearch nodes (using Malcolm-Helm) fail to communicate with each other due to self-signed certs (thanks scott-jeffery)
    • OpenSearch post-start setup now supports configurable default replica counts instead of always forcing single-node replicas to 0
    • OpenSearch self-signed internal cert generation can now be skipped when external/preexisting certs are being used
  • #827 — Fix raspberry pi build which is broken since v25.12.0 Hedgehog/Malcolm platform unification
    • Updated Hedgehog Raspberry Pi docs and first-boot behavior/documentation
    • Hedgehog Raspberry Pi image now forces password change for sensor on first login and disables direct root password login by default
    • Refactored Raspberry Pi GitHub Actions build into reusable workflow .github/workflows/raspi-build-push.yml
  • #878 — Arkime capture Fails to Start on Hedgehog When WISE Web Config Is Enabled
    • Arkime RBAC role-mapping injection is now only applied when role-based access control is enabled
    • Arkime WISE configuration initialization now handles missing/empty persistent config files more robustly
    • Arkime live capture now normalizes WISE URLs better, follows redirects when probing, and avoids some bad URL construction edge cases
  • #957 — configuration script can disable ICS parsers unintentionally
  • #959 — Arkime sessions view attempts to load PCAP for Zeek and Suricata logs (which don't have PCAP) (see also arkime/arkime#3934)
  • Fixed one-off cleanup of interrupted Zeek intel files during stop --wipe
• 🧹 Code and project maintenance
  • Documentation improvements
  • #913 — replace ingress-nginx which is EOL
    • Switched Kubernetes ingress example/docs from ingress-nginx to Traefik and replaced the old Vagrant example with a new RKE2/Traefik-based environment
    • Fixed malformed indentation in kubernetes/01-volumes-nfs.yml.example for the filescan volume section
    • Removed deprecated Kubernetes example files for ingress-nginx and the old separate NFS-server Vagrant setup
    • opensearch is no longer part of the hedgehog Docker Compose profile, and some depends_on relationships were adjusted accordingly
  • #942 - Fixed mutable default argument usage in Zeek threat feed helper functions (thanks @stef41)
  • #917 — develop IronBank (US DoD) images for Malcolm
• 📄 Configuration changes for Malcolm (in environment variables in ./config/). The Malcolm control script (e.g., ./scripts/status, ./scripts/start) automatically handles creation and migration of variables according to ./config/env-var-actions.yml.
  • Added ZEEK_FILE_ANALYZER_TIMEOUT_SEC (default 5) to zeek.env. This is the default amount of time a file can be inactive before the file analysis gives up and discards any internal state related to the file.
  • ZEEK_CLUSTER_BACKEND can be specified in zeek.env to specify the Zeek cluster backend (ZeroMQ vs Broker).
• ❌ Errata
  • Under NetBox → Plugins → NetBox HealthCheck Plugin → HealthCheck the error "unavailable: Unable to connect to Redis: Connection Error" is displayed. This is a side effect of #882 and does not actually indicate a problem with NetBox or its connection to Valkey. This will be fixed in the next release.

Malcolm is a powerful, easily deployable network 🖧 traffic analysis tool suite for network security monitoring 🕵🏻‍♀️.

Malcolm operates as a cluster of containers 📦, isolated sandboxes which each serve a dedicated function of the system. This makes Malcolm deployable with frameworks like Docker 🐋, Podman 🦭, and Kubernetes ⎈. Check out the Quick Start guide for examples on how to get up and running.

Alternatively, dedicated official ISO installer images 💿 for Malcolm and Hedgehog Linux 🦔 can be downloaded from Malcolm's releases page on GitHub. Due to limits on individual files in GitHub releases, these ISO files have been split 🪓 into 2GB chunks and can be reassembled with scripts provided for both Bash 🐧 (release_cleaver.sh) and PowerShell 🪟 (release_cleaver.ps1). See Downloading Malcolm - Installer ISOs for instructions.

As always, join us on the Malcolm discussions board 💬 to engage with the community, or pop some corn 🍿 and watch a video 📼.

#Malcolm #HedgehogLinux #Zeek #Arkime #Strelka #NetBox #OpenSearch #Elasticsearch #Suricata #PCAP #NetworkTrafficAnalysis #networksecuritymonitoring #OT #ICS #icssecurity #CyberSecurity #Cyber #Infosec #INL