[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fhZ4g9BO5peji4zhsLSFszh_DDY2rtKqIeRbScYIXPG4":3},{"lesson":4},{"id":5,"slug":6,"article_id":7,"title":8,"body":9,"prevention":10,"framework_refs":11,"status":22,"created_at":23,"published_at":24,"article":25,"tags":29,"podcasts":42},"e1e91ecb-dca1-475c-b1ba-a50bca17623a","critical-rce-flaws-in-langflow-and-ruby-on-rails-actively-exploited-for-credential-theft-and-c2","67b02140-7a3c-40c7-b62b-7bac2a35cc0f","Critical RCE Flaws in Langflow and Ruby on Rails Actively Exploited for Credential Theft and C2","Threat actors are actively weaponizing two critical unpatched vulnerabilities in Langflow and Ruby on Rails, enabling arbitrary code execution, credential harvesting, and command-and-control activity against unprotected systems. The root cause is a failure to apply timely patches to internet-facing applications, leaving known critical flaws exposed to opportunistic attackers. Sensitive assets such as API keys and database passwords are being exfiltrated, which can cascade into broader infrastructure compromise. This highlights that delay in patching high-severity vulnerabilities — particularly in externally accessible services — creates a rapidly exploitable attack surface with significant downstream consequences.","**Immediate actions:**\n- Apply the latest vendor-released patches for Langflow and Ruby on Rails immediately, prioritizing internet-facing instances.\n- Audit all exposed instances for indicators of compromise, including unauthorized API key access, unexpected outbound connections, and suspicious file reads.\n- Rotate all potentially exposed credentials (API keys, database passwords) as an emergency measure.\n\n**Long-term improvements:**\n- Implement an automated vulnerability scanning program that continuously monitors internet-facing assets for newly disclosed CVEs.\n- Establish and enforce an emergency patching SLA (e.g., ≤24–48 hours) for critical-severity vulnerabilities on public-facing systems.\n- Maintain a current and accurate software inventory (SBOM\u002FCMDB) to ensure no vulnerable instances are missed during patch campaigns.\n\n**Detection measures:**\n- Deploy web application firewall (WAF) rules and intrusion detection signatures targeting exploitation patterns for these CVEs.\n- Enable centralised logging and alerting for anomalous code execution, unusual outbound traffic, and credential access events on affected systems.\n- Implement geo-based and behavioral anomaly alerts to flag reconnaissance and exploitation attempts from high-risk source regions.",[12,13,14,15,16,17,18,19,20,21],"CIS Control 7: Continuous Vulnerability Management","CIS Control 12: Network Infrastructure Management","CIS Control 4: Secure Configuration of Enterprise Assets and Software","NIST SP 800-40 Rev. 4: Guide to Enterprise Patch Management Planning","NIST SI-2: Flaw Remediation","NIST RA-5: Vulnerability Monitoring and Scanning","NIST IR-4: Incident Handling","OWASP A06:2021 – Vulnerable and Outdated Components","GDPR Article 32: Security of Processing (protection of credentials\u002Fsensitive data)","ITIL Change Management: Emergency Change Procedures","published","2026-09-01T08:20:53.634107+00:00","2026-09-01T08:20:53.356+00:00",{"id":7,"url":26,"slug":27,"title":28},"https:\u002F\u002Fthehackernews.com\u002F2026\u002F09\u002Fattackers-exploit-critical-langflow-and.html","attackers-exploit-critical-langflow-and-rails-flaws-in-credential-probing-and-c2-9d1d25","Attackers Exploit Critical Langflow and Rails Flaws in Credential-Probing and C2 Activity",[30,36],{"id":31,"name":32,"slug":33,"description":34,"color":35},"05757c8d-6b93-4194-b35d-7359e7d33b0e","Vulnerability Management","vulnerability-management","Missing scans, no risk prioritization","#fb923c",{"id":37,"name":38,"slug":39,"description":40,"color":41},"af7fce9e-1ce8-4156-93bc-09dcfbfdf29d","Patch Management","patch-management","Unpatched vulnerabilities, delayed updates","#ef4444",[43],{"id":44,"date":45,"edition":46,"title":47,"audio_url":48},"f6ec6c97-2a24-4cc7-970c-248f9a7f92ab","2026-09-01","afternoon","ThreatNoir Afternoon Brief — September 1","https:\u002F\u002Fcdn.threatnoir.com\u002Fpodcasts\u002F2026-09-01\u002Fthreatnoir-afternoon-brief-2026-09-01.mp3"]