{"action":"Upgrade joserfc to 1.6.7 or later.","affected":[{"fixed":"1.6.7","introduced":"1.3.4"}],"component":"joserfc","cve_ids":["CVE-2026-48990"],"ecosystem":"PyPI","epss":0.00163,"exploited":false,"fixed_versions":["1.6.7"],"ghsa_id":"GHSA-wphv-vfrh-23q5","id":"tcs_01M5KH016AXDNYN45YHMXQ1NTV","modified_at":"2026-07-13T16:31:58.801108194Z","published_at":"2026-07-13T15:46:24.974794Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2530","https://github.com/authlib/joserfc/security/advisories/GHSA-wphv-vfrh-23q5","https://nvd.nist.gov/vuln/detail/CVE-2026-48990","https://github.com/authlib/joserfc","https://github.com/authlib/joserfc/releases/tag/1.6.7","https://pypi.org/project/joserfc","https://github.com/advisories/GHSA-wphv-vfrh-23q5"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"PYSEC-2026-2530","url":"https://osv.dev/vulnerability/PYSEC-2026-2530"}],"summary":"joserfc: b64=false RFC7797 JWS payloads bypass JWSRegistry payload-size limits during deserialization"}