{"action":"Upgrade pypdf to 6.13.1 or later.","affected":[{"fixed":"6.13.1","introduced":"0"}],"component":"pypdf","cve_ids":["CVE-2026-54651"],"ecosystem":"PyPI","epss":0.00158,"exploited":false,"fixed_versions":["6.13.1"],"ghsa_id":"GHSA-g9xf-7f8q-9mcj","id":"tcs_01M5KH2YC9NB23YCWT7B00V1JP","modified_at":"2026-07-13T16:33:05.720750364Z","published_at":"2026-07-13T15:46:30.300874Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3018","https://github.com/py-pdf/pypdf/security/advisories/GHSA-g9xf-7f8q-9mcj","https://nvd.nist.gov/vuln/detail/CVE-2026-54651","https://github.com/py-pdf/pypdf/pull/3839","https://github.com/py-pdf/pypdf","https://github.com/py-pdf/pypdf/releases/tag/6.13.1","https://pypi.org/project/pypdf","https://github.com/advisories/GHSA-g9xf-7f8q-9mcj"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-3018","url":"https://osv.dev/vulnerability/PYSEC-2026-3018"},{"source":"nvd","source_id":"CVE-2026-54651","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54651"}],"summary":"pypdf: Possible infinite loop when processing threads/articles in writer"}