LangChain: MongoDBChatMessageHistory query injection can allow cross-session access

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-106119 · Microsoft / collected KEV context

EUVD-2026-93771

GHSA-m6rx-h84q-8r95

cve-program · CVE-2026-106119

• https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-m6rx-h84q-8r95
• https://github.com/langchain-ai/langchainjs/pull/11672
• https://github.com/langchain-ai/langchainjs/commit/946e3d856ff1f8ce7f7b9374c83f680a6ada79af
• https://github.com/langchain-ai/langchainjs/releases/tag/@langchain/[email protected]

euvd · EUVD-2026-93771

• https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-m6rx-h84q-8r95
• https://github.com/langchain-ai/langchainjs/pull/11672
• https://github.com/langchain-ai/langchainjs/commit/946e3d856ff1f8ce7f7b9374c83f680a6ada79af
• https://github.com/langchain-ai/langchainjs/releases/tag/@langchain/[email protected]

nvd · CVE-2026-106119

• https://github.com/langchain-ai/langchainjs/commit/946e3d856ff1f8ce7f7b9374c83f680a6ada79af
• https://github.com/langchain-ai/langchainjs/pull/11672
• https://github.com/langchain-ai/langchainjs/releases/tag/@langchain/[email protected]
• https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-m6rx-h84q-8r95

osv · GHSA-m6rx-h84q-8r95

• https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-m6rx-h84q-8r95
• https://nvd.nist.gov/vuln/detail/CVE-2026-106119
• https://github.com/langchain-ai/langchainjs/pull/11672
• https://github.com/langchain-ai/langchainjs/commit/946e3d856ff1f8ce7f7b9374c83f680a6ada79af
• https://github.com/langchain-ai/langchainjs
• https://github.com/langchain-ai/langchainjs/releases/tag/@langchain/[email protected]

No related operational record is retained in the current change model.