{"schema_version":1,"title":"Langchain Core vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Langchain Core: 0 in the last 7 days and 0 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-40087, was published on 9 April 2026.","url":"https://junglewise.ai/threats/technologies/langchain-langchain-core","json_url":"https://junglewise.ai/threats/technologies/langchain-langchain-core.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/langchain-langchain-core","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":true,"counts":{"high":1,"all_time":3,"critical":1,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":3},"latest":[{"cve":"CVE-2026-40087","cvss":5.3,"epss":0.0026,"slug":"cve-2026-40087-langchain-incomplete-f-string-validation-in-prompt-templates","title":"LangChain incomplete f-string validation in prompt templates","severity":"medium","exploited":false,"published_at":"2026-04-09T20:16:27.4+00:00","url":"https://junglewise.ai/threats/cve-2026-40087-langchain-incomplete-f-string-validation-in-prompt-templates"},{"cve":"CVE-2025-68665","cvss":8.6,"epss":0.0079,"slug":"cve-2025-68665-langchain-serialization-injection-enables-secret-extraction","title":"LangChain serialization injection enables secret extraction","severity":"high","exploited":false,"published_at":"2025-12-23T23:15:45.097+00:00","url":"https://junglewise.ai/threats/cve-2025-68665-langchain-serialization-injection-enables-secret-extraction"},{"cve":"CVE-2025-68664","cvss":9.3,"epss":0.4293,"slug":"cve-2025-68664-langchain-serialization-injection-vulnerability-enables-secret","title":"LangChain serialization injection vulnerability enables secret extraction in dumps/loads APIs","severity":"critical","exploited":false,"published_at":"2025-12-23T23:15:44.933+00:00","url":"https://junglewise.ai/threats/cve-2025-68664-langchain-serialization-injection-vulnerability-enables-secret"}],"weekly":[{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"LangChain LangSmith SDK","slug":"langsmith-sdk","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/langsmith-sdk"}],"technology":{"hub":true,"name":"Langchain Core","slug":"langchain-langchain-core","vendor":{"hub":true,"name":"LangChain","slug":"langchain","url":"https://junglewise.ai/threats/vendors/langchain"},"aliases":["langchain-core-1"],"homepage":"https://python.langchain.com","description":"LangChain Core is a Python library providing abstractions for building language model applications.","url":"https://junglewise.ai/threats/technologies/langchain-langchain-core"},"most_severe":[{"cve":"CVE-2025-68664","cvss":9.3,"epss":0.4293,"slug":"cve-2025-68664-langchain-serialization-injection-vulnerability-enables-secret","title":"LangChain serialization injection vulnerability enables secret extraction in dumps/loads APIs","severity":"critical","exploited":false,"published_at":"2025-12-23T23:15:44.933+00:00","url":"https://junglewise.ai/threats/cve-2025-68664-langchain-serialization-injection-vulnerability-enables-secret"},{"cve":"CVE-2025-68665","cvss":8.6,"epss":0.0079,"slug":"cve-2025-68665-langchain-serialization-injection-enables-secret-extraction","title":"LangChain serialization injection enables secret extraction","severity":"high","exploited":false,"published_at":"2025-12-23T23:15:45.097+00:00","url":"https://junglewise.ai/threats/cve-2025-68665-langchain-serialization-injection-enables-secret-extraction"},{"cve":"CVE-2026-40087","cvss":5.3,"epss":0.0026,"slug":"cve-2026-40087-langchain-incomplete-f-string-validation-in-prompt-templates","title":"LangChain incomplete f-string validation in prompt templates","severity":"medium","exploited":false,"published_at":"2026-04-09T20:16:27.4+00:00","url":"https://junglewise.ai/threats/cve-2026-40087-langchain-incomplete-f-string-validation-in-prompt-templates"}],"generated_at":"2026-11-09T03:07:00.176479+00:00"}