{"schema":"threatline.record/2","record":{"id":"CVE-2026-45829","aliases":["GHSA-f4j7-r4q5-qw2c","PYSEC-2026-311"],"summary":"ChromaDB Python project has a pre-authentication code injection vulnerability","details":"A pre-authentication, code injection vulnerability in version 1.0.0 or later of the ChromaDB Python project allows an unauthenticated attacker to run arbitrary code on the server by sending a malicious model repository and trust_remote_code set to true in the /api/v2/tenants/{tenant}/databases/{db}/collections endpoint.","categories":["Libraries & packages"],"product":"chromadb","vendor":"Chroma","ecosystem":"pip","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-f4j7-r4q5-qw2c","source_modified_at":"2026-10-05T21:32:32Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"pip","name":"chromadb"},"range":">= 1.0.0, <= 1.5.9"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-45829","source_modified_at":"2026-07-15T11:47:34.821Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"ChromaDB","vendor":"Chroma","versions":[{"status":"affected","version":"1.0.0","lessThanOrEqual":"*","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-f4j7-r4q5-qw2c","source_modified_at":"2026-10-05T21:45:03.620198036Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"PyPI","name":"chromadb","purl":"pkg:pypi/chromadb"},"ranges":[{"events":[{"introduced":"1.0.0"},{"last_affected":"1.5.9"}],"type":"ECOSYSTEM"}],"versions":["1.0.0","1.0.10","1.0.11","1.0.12","1.0.13","1.0.15","1.0.16","1.0.17","1.0.18","1.0.19","1.0.2","1.0.20","1.0.21","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.0.8","1.0.9","1.1.0","1.1.1","1.2.0","1.2.1","1.2.2","1.3.0","1.3.2","1.3.3","1.3.4","1.3.5","1.3.6","1.3.7","1.4.0","1.4.1","1.5.0","1.5.1","1.5.2","1.5.3","1.5.4","1.5.5","1.5.6","1.5.7","1.5.8","1.5.9"]}],"fixed_versions":[],"cvss":9.3,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.01411,"percentile":0.72468,"score_date":"2026-10-23"},"published_at":"2026-05-18T15:59:22.529Z","modified_at":"2026-10-05T21:45:03.620198036Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-f4j7-r4q5-qw2c","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-05T21:32:32Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-45829","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-07-15T11:47:34.821Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-f4j7-r4q5-qw2c","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-05T21:45:03.620198036Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-45829","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45829","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/chroma-core/chroma/issues/6717"},{"source":"CVE List","url":"https://www.hiddenlayer.com/research/chromatoast-served-pre-auth","tags":["exploit"]},{"source":"CVE List","url":"https://access.redhat.com/security/cve/CVE-2026-45829","tags":["vdb-entry","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479623","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://github.com/advisories/GHSA-f4j7-r4q5-qw2c","source":"GitHub Advisory Database"},{"url":"https://github.com/chroma-core/chroma","source":"GitHub Advisory Database"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/chromadb/PYSEC-2026-311.yaml","source":"GitHub Advisory Database"},{"url":"https://pypi.org/project/chromadb","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45829.json","tags":["x_sadp-csaf-vex"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"poc","automatable":"yes","technical_impact":"total","assessed_at":"2026-05-19T12:53:10.341013Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-05T21:45:03.620198036Z","content_hash":"0ce94611f5e3443171df8030ae2dd0feb3ab5e83cd75913473711de0fa30ef2a"}}