{"items":[{"id":"NVI-00011689","kind":"vulnerability","title":"LangChain: MongoDBChatMessageHistory query injection can allow cross-session access","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-m6rx-h84q-8r95","CVE-2026-106119"],"plain_summary":"GitHub lists this reviewed advisory for @langchain/mongodb. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-01c26d9f0c2a33646746edf849e99d3b"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.463%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.40157. Missing scores are unknown.","source_id":"sr-01c26d9f0c2a33646746edf849e99d3b"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-021e7928dbc9c410e095334db6f1c39e","url":"https://github.com/advisories/GHSA-m6rx-h84q-8r95","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-m6rx-h84q-8r95","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"},{"id":"sr-01c26d9f0c2a33646746edf849e99d3b","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-106119","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.263Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-021e7928dbc9c410e095334db6f1c39e"],"technology":"@langchain/mongodb","known_exclusions":[],"conditions_summary":"## Impact\n\n`MongoDBChatMessageHistory` did not enforce the documented string type for session identifiers at runtime. In affected applications, a structured session identifier could be interpreted as a MongoDB query condition rather than as a literal identifier.\n\nApplications are affected when they pass untrusted session identifier input to `MongoDBChatMessageHistory` and store multiple users’ histories in the same collection. An attacker who can invoke chat-history operations may be able to read, modify, or delete another user’s stored conversation.\n\nApplications that derive the session identifier from an authenticated, server-controlled value and enforce its type are not affected by this path.\n\n## Patches\n\nThe issue is fixed in `@langchain/mongodb` version **1.3.1**.\n\nUsers of affected versions should upgrade to version 1.3.1 or later. The patched version validates session identifiers at runtime and ensures they are compared as literal values in MongoDB queries.\n\n## Workarounds\n\nIf an immediate upgrade is not possible, applications must reject session identifiers that are not non-empty strings. Session identifiers should be derived from an authenticated, server-controlled value a","public_affected_ranges":["<= 1.3.0"]}],"null_published_at":"2026-11-02T20:21:07.737Z","source_updated_at":"2026-10-08T17:52:24.000Z","source_disclosed_at":"2026-10-08T17:52:22.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T00:58:23.763Z"},{"id":"NVI-00011689","kind":"vulnerability","title":"LangChain: MongoDBChatMessageHistory query injection can allow cross-session access","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-m6rx-h84q-8r95","CVE-2026-106119"],"plain_summary":"GitHub lists this reviewed advisory for @langchain/mongodb. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-021e7928dbc9c410e095334db6f1c39e"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-021e7928dbc9c410e095334db6f1c39e","url":"https://github.com/advisories/GHSA-m6rx-h84q-8r95","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-m6rx-h84q-8r95","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-021e7928dbc9c410e095334db6f1c39e"],"technology":"@langchain/mongodb","known_exclusions":[],"conditions_summary":"## Impact\n\n`MongoDBChatMessageHistory` did not enforce the documented string type for session identifiers at runtime. In affected applications, a structured session identifier could be interpreted as a MongoDB query condition rather than as a literal identifier.\n\nApplications are affected when they pass untrusted session identifier input to `MongoDBChatMessageHistory` and store multiple users’ histories in the same collection. An attacker who can invoke chat-history operations may be able to read, modify, or delete another user’s stored conversation.\n\nApplications that derive the session identifier from an authenticated, server-controlled value and enforce its type are not affected by this path.\n\n## Patches\n\nThe issue is fixed in `@langchain/mongodb` version **1.3.1**.\n\nUsers of affected versions should upgrade to version 1.3.1 or later. The patched version validates session identifiers at runtime and ensures they are compared as literal values in MongoDB queries.\n\n## Workarounds\n\nIf an immediate upgrade is not possible, applications must reject session identifiers that are not non-empty strings. Session identifiers should be derived from an authenticated, server-controlled value a","public_affected_ranges":["<= 1.3.0"]}],"null_published_at":"2026-11-01T01:03:56.584Z","source_updated_at":"2026-10-08T17:52:24.000Z","source_disclosed_at":"2026-10-08T17:52:22.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-01T00:58:23.763Z"}],"next_cursor":null,"snapshot_revision":"42594"}