{"action":"Upgrade restrictedpython to 8.3 or later.","affected":[{"fixed":"8.3","introduced":"0"}],"component":"restrictedpython","cve_ids":["CVE-2026-55830"],"ecosystem":"PyPI","epss":0.00287,"exploited":false,"fixed_versions":["8.3"],"ghsa_id":"GHSA-ffg3-p8fm-mjx2","id":"tcs_01M5KH8K4Z7B1EG9FJFJ1Z5ANA","modified_at":"2026-09-10T12:15:11.823892521Z","published_at":"2026-09-10T09:44:58.880974Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3917","https://github.com/zopefoundation/RestrictedPython/security/advisories/GHSA-ffg3-p8fm-mjx2","https://nvd.nist.gov/vuln/detail/CVE-2026-55830","https://github.com/zopefoundation/RestrictedPython/commit/3737596ec9f28c34a073cc845bd2f4c0a80cb671","https://github.com/zopefoundation/RestrictedPython","https://pypi.org/project/restrictedpython","https://github.com/advisories/GHSA-ffg3-p8fm-mjx2"],"severity":{"label":"high","score":8.3},"sources":[{"source":"osv","source_id":"PYSEC-2026-3917","url":"https://osv.dev/vulnerability/PYSEC-2026-3917"}],"summary":"RestrictedPython guard hooks can be shadowed via positional-only arguments"}