{"id":"CVE-2026-9198","published":"2026-07-17T18:17:17Z","modified":"2026-10-24T20:10:00Z","title":"IBM Langflow Code Injection Vulnerability","vendor":"IBM","product":"Langflow","tier":"core","eol":null,"description":{"text":"IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/auto_login (mints SUPERUSER tokens to any network caller) with /api/v1/validate/code (executes user code via exec()) to achieve full RCE on default Langflow deployments","provenance":"source","from":"NVD"},"summary":{"text":"IBM Langflow OSS versions 1.0.0 through 1.10.0 contain a code injection flaw in which the /api/v1/validate/code endpoint executes user-supplied code via exec(). An unauthenticated attacker with network access to a default Langflow deployment can chain this with the /api/v1/auto_login endpoint, which issues SUPERUSER tokens to any network caller, to achieve full remote code execution without authentication or user interaction.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:53:48Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.28658,"percentile":0.98135,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2026-08-04","dueDate":"2026-08-07","ransomware":false,"requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","notes":"https://www.ibm.com/support/pages/node/7278927 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-9198","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-08-04","exploitedFirstSeen":"2026-08-04","ransomware":false,"evidence":[{"url":"https://previdian.com/CVE-2026-9198","date":"2026-08-04"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-08-04"},{"url":"https://cydome.io/maritime-cybersecurity-bulletin-august-7th-2026/","date":"2026-08-07"},{"url":"https://bitbison.io/blog/langflow-rce-exposure/","date":"2026-08-19"},{"url":"https://expel.com/blog/the-ai-cve-exploitation-evidence-story-headlines-are-scarier-than-reality/","date":"2026-08-27"},{"url":"https://www.vulncheck.com/blog/pwning-the-ai-stack","date":"2026-08-28"},{"url":"https://www.recordedfuture.com/blog/august-2026-cve-landscape","date":"2026-09-08"}],"evidenceTotal":7,"provenance":"source"},"exploited":true,"otx":{"pulseCount":46,"pulses":[{"name":"Actively_Exploited_Kev | Oct 31, 2026","url":"https://otx.alienvault.com/pulse/6ae4aefab0c2191cecd41862","created":"2026-10-30"},{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"}],"provenance":"machine"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7278927","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-9198","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: unauthenticated network attacker exploits exposed application endpoints","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"allows unauthenticated attackers to chain","start":38,"end":79}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: exec() runs attacker-supplied code on the server","mappingType":"primary_impact","evidence":[{"from":"description","quote":"executes user code via exec()","start":174,"end":203}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-45236","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-45236","exploited":true,"exploitedSince":"2026-08-04","provenance":"source"},"exploits":[{"id":52675,"url":"https://www.exploit-db.com/exploits/52675","title":"Langflow 1.10.0 - RCE","type":"webapps","platform":"multiple","date":"2026-09-02","verified":false,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2026-09-02"},"pocGithub":{"count":6,"skipped":3,"earliest":"2026-07-21","earliestUrl":"https://github.com/0xdak/CVE-2026-9198_exploit","repos":[{"name":"0xgh057r3c0n/CVE-2026-9198","url":"https://github.com/0xgh057r3c0n/CVE-2026-9198","stars":3,"created":"2026-07-24"},{"name":"0xdak/CVE-2026-9198_exploit","url":"https://github.com/0xdak/CVE-2026-9198_exploit","stars":1,"created":"2026-07-21"},{"name":"rmhowe425/PoC-CVE-2026-9198","url":"https://github.com/rmhowe425/PoC-CVE-2026-9198","stars":1,"created":"2026-08-05"},{"name":"ywh-jfellus/CVE-2026-9198","url":"https://github.com/ywh-jfellus/CVE-2026-9198","stars":0,"created":"2026-07-24"},{"name":"CuteeCat/CVE-2026-9198","url":"https://github.com/CuteeCat/CVE-2026-9198","stars":0,"created":"2026-08-11"}]},"metasploit":[{"name":"Langflow AI auto_login RCE","module":"exploit/multi/http/langflow_unauth_rce_cve_2026_9198","type":"exploit","disclosureDate":"2026-07-17","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/langflow_unauth_rce_cve_2026_9198.rb"}],"nuclei":[{"id":"CVE-2026-9198","name":"IBM Langflow - Remote Code Execution","severity":"critical","path":"http/cves/2026/CVE-2026-9198.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-9198.yaml"}],"first":{"date":"2026-07-17","source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/langflow_unauth_rce_cve_2026_9198.rb"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2026-07-17","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9198","provenance":"source"},{"date":"2026-07-17","kind":"exploit-public","label":"First public exploit: Metasploit; later: PoC-in-GitHub 2026-07-21, Exploit-DB 2026-09-02","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/langflow_unauth_rce_cve_2026_9198.rb","provenance":"source"},{"date":"2026-08-04","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://previdian.com/CVE-2026-9198","provenance":"source"},{"date":"2026-08-04","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2026-08-04","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-45236","provenance":"source"}],"speed":{"daysToPublicExploit":0,"firstExploitFrom":"Metasploit","daysToKev":18},"priority":{"score":79.5,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":10.0,"detail":"added 88 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.63,"detail":"percentile 0.9813"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 Exploit-DB entry; 6 PoC-in-GitHub repos; 1 Metasploit module; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"46 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}