{"action":"Upgrade @langchain/langgraph-checkpoint-mongodb to 1.3.1 or later.","affected":[{"fixed":"1.3.1","introduced":"0"}],"component":"@langchain/langgraph-checkpoint-mongodb","cve_ids":["CVE-2026-48121"],"ecosystem":"npm","epss":0.00355,"exploited":false,"fixed_versions":["1.3.1"],"ghsa_id":"GHSA-98xf-r82g-9mhx","id":"tcs_01M5KFF92YBZF10PWQS2F0VA5V","modified_at":"2026-09-10T03:50:49.235778397Z","published_at":"2026-06-12T15:05:32Z","references":["https://osv.dev/vulnerability/GHSA-98xf-r82g-9mhx","https://github.com/langchain-ai/langgraphjs/security/advisories/GHSA-98xf-r82g-9mhx","https://github.com/langchain-ai/langgraphjs/issues/2351","https://github.com/langchain-ai/langgraphjs/pull/2397","https://github.com/langchain-ai/langgraphjs/commit/284226c7ca164b3c81fe2d9e32b10f1fc6b99a3c","https://github.com/langchain-ai/langgraphjs"],"severity":{"label":"medium","score":6.7},"sources":[{"source":"osv","source_id":"GHSA-98xf-r82g-9mhx","url":"https://osv.dev/vulnerability/GHSA-98xf-r82g-9mhx"}],"summary":"LangGraph has NoSQL parameter injection in MongoDBSaver, allowing cross-tenant state access"}