{"answers":{"affected":"6 open source packages ship an affected version, including langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite.","exploited":"There is no known exploitation of CVE-2026-71433 in the wild and no public exploit code.","fix":"Upgrade langgraph-checkpoint-postgres to 3.1.1 or later.","what":"CVE-2026-71433 is a medium-severity missing authorization vulnerability in langchain-ai langgraph, published on 6 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-71433 and fix it if it is affected.\n\nWhat it is: CVE-2026-71433 is a medium-severity missing authorization vulnerability in langchain-ai langgraph, published on 6 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-71433 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- langgraph-checkpoint-postgres (PyPI): affected all versions; fixed in 3.1.1\n- langgraph-checkpoint-postgres (PyPI): affected all versions; fixed in 3.1.1\n- langgraph-checkpoint-postgres (PyPI): affected all versions; fixed in 3.1.1\n- langgraph-checkpoint-sqlite (PyPI): affected all versions; fixed in 3.1.1\n- langgraph-checkpoint-sqlite (PyPI): affected all versions; fixed in 3.1.1\n- langgraph-checkpoint-sqlite (PyPI): affected all versions; fixed in 3.1.1\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-71433/ (Markdown: https://insights.sbomify.com/CVE-2026-71433/index.md)","id":"CVE-2026-71433","markdown":"https://insights.sbomify.com/CVE-2026-71433/index.md","name":"CVE-2026-71433","record":{"aliases":["GHSA-47pj-3jcm-6whg","PYSEC-2026-3635","PYSEC-2026-3636"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"LangGraph checkpoint library","requires_auth":"low_privilege","summary":"An authenticated attacker can retrieve data from other tenants or users due to flawed namespace prefix matching in LangGraph checkpoint stores.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"LangGraph Checkpoint Postgres and SQLite Checkpoint are the Postgres and SQLite implementations of LangGraph's checkpoint saver. Prior to 3.1.1, the langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite packages persisted hierarchical namespaces as a dot joined string and scoped reads by matching that string as a simple prefix pattern, so a read scoped to one namespace could also match a sibling namespace whose flattened form shares the same leading characters, or a namespace label containing unescaped pattern metacharacters, allowing an authenticated caller to retrieve stored items belonging to another tenant or user through an ordinary scoped search or list namespaces call, with no crafted input required. This issue is fixed in versions 3.1.1 of langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"LangGraph: Namespace prefix matching crosses segment boundaries in Postgres and SQLite stores","id":"CVE-2026-71433","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":6,"n_references":5,"next":{"headline":"Statamic: Missing file upload validation on frontend forms allows uploading disallowed file types","id":"CVE-2026-71434"},"packages":[{"ecosystem":"PyPI","fixed":["3.1.1"],"introduced":["0"],"last_affected":[],"package":"langgraph-checkpoint-postgres","purl":null,"source":"GHSA-47pj-3jcm-6whg"},{"ecosystem":"PyPI","fixed":["3.1.1"],"introduced":["0"],"last_affected":[],"package":"langgraph-checkpoint-postgres","purl":"pkg:pypi/langgraph-checkpoint-postgres","source":"GHSA-47pj-3jcm-6whg"},{"ecosystem":"PyPI","fixed":["3.1.1"],"introduced":["0"],"last_affected":[],"package":"langgraph-checkpoint-postgres","purl":"pkg:pypi/langgraph-checkpoint-postgres","source":"PYSEC-2026-3635"},{"ecosystem":"PyPI","fixed":["3.1.1"],"introduced":["0"],"last_affected":[],"package":"langgraph-checkpoint-sqlite","purl":null,"source":"GHSA-47pj-3jcm-6whg"},{"ecosystem":"PyPI","fixed":["3.1.1"],"introduced":["0"],"last_affected":[],"package":"langgraph-checkpoint-sqlite","purl":"pkg:pypi/langgraph-checkpoint-sqlite","source":"GHSA-47pj-3jcm-6whg"},{"ecosystem":"PyPI","fixed":["3.1.1"],"introduced":["0"],"last_affected":[],"package":"langgraph-checkpoint-sqlite","purl":"pkg:pypi/langgraph-checkpoint-sqlite","source":"PYSEC-2026-3636"}],"prev":{"headline":"node-re2: String.prototype.replace(re2, template) aborts the Node process (uncatchable ToLocalChecked on empty MaybeLocal) when the result exceeds V8's max string length","id":"CVE-2026-71430"},"products":["langgraph","langgraph-checkpoint-postgres","langgraph-checkpoint-sqlite"],"published":"2026-08-06","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-07","vendors":["langchain-ai"]},"summary":"An authenticated attacker can retrieve data from other tenants or users due to flawed namespace prefix matching in LangGraph checkpoint stores.","url":"https://insights.sbomify.com/CVE-2026-71433/"}