{"cve":"CVE-2026-34953","nvd":{"published":"2026-04-03T23:17:06.653","modified":"2026-07-24T22:10:00.140","status":"Analyzed","description":"PraisonAI is a multi-agent teams system. Prior to version 4.5.97, OAuthManager.validate_token() returns True for any token not found in its internal store, which is empty by default. Any HTTP request to the MCP server with an arbitrary Bearer token is treated as authenticated, granting full access to all registered tools and agent capabilities. This issue has been patched in version 4.5.97.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":9.1},"cwes":["CWE-863"],"references":["https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-98f9-fqg5-hvq5","https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-98f9-fqg5-hvq5"],"products":["praison:praisonai"],"source":"nvd","synced_at":"2026-10-19T22:28:59.047572785+00:00"},"epss":{"cve":"CVE-2026-34953","score":0.0039,"percentile":0.33159,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-98f9-fqg5-hvq5","url":"https://osv.dev/vulnerability/GHSA-98f9-fqg5-hvq5","summary":"PraisonAI Has Authentication Bypass via OAuthManager.validate_token()","modified":"2026-06-29T12:26:23.291378785Z","packages":[{"ecosystem":"PyPI","name":"praisonai","purl":"pkg:pypi/praisonai","ranges":["<4.5.97"],"fixed":["4.5.97"]}]},{"id":"PYSEC-2026-468","url":"https://osv.dev/vulnerability/PYSEC-2026-468","summary":"PraisonAI Has Authentication Bypass via OAuthManager.validate_token()","modified":"2026-07-13T16:15:31.961261420Z","packages":[{"ecosystem":"PyPI","name":"praisonai","purl":"pkg:pypi/praisonai","ranges":["<4.5.97"],"fixed":["4.5.97"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}