{"id":"RHLW-2026-821eaab8409c2a61","summary":"Lightwell Security Advisory: pypdf2 3.0.1+rhlw.1","details":"Red Hat Lightwell has released pypdf2 3.0.1+rhlw.1 with a backported security fix.\n\nCVE-2023-36464: Infinite Loop when a comment isn't followed by a character in pypdf\n\nThis patched artifact is a drop-in replacement for pypdf2 3.0.1 from PyPI.","modified":"2026-10-22T00:08:23.882472853Z","published":"2026-09-23T12:12:40Z","upstream":["CVE-2023-36464","GHSA-4vvm-4w3v-6mr8"],"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/36xxx/CVE-2023-36464.json"},{"type":"ADVISORY","url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-4vvm-4w3v-6mr8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-36464"},{"type":"FIX","url":"https://github.com/py-pdf/pypdf/pull/1828"},{"type":"FIX","url":"https://github.com/py-pdf/pypdf/pull/969"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-4vvm-4w3v-6mr8"}],"affected":[{"package":{"name":"pypdf2","ecosystem":"Red Hat Lightwell:PyPI","purl":"pkg:pypi/pypdf2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.1+rhlw.1"}]}],"versions":["1.15","1.16","1.17","1.18","1.19","1.20","1.21","1.22","1.23","1.24","1.25","1.25.1","1.26.0","1.27.0","1.27.1","1.27.10","1.27.11","1.27.12","1.27.2","1.27.3","1.27.4","1.27.5","1.27.6","1.27.7","1.27.8","1.27.9","1.28.0","1.28.1","1.28.2","1.28.3","1.28.4","1.28.5","1.28.6","2.0.0","2.1.0","2.1.1","2.10.0","2.10.1","2.10.2","2.10.3","2.10.4","2.10.5","2.10.6","2.10.7","2.10.8","2.10.9","2.11.0","2.11.1","2.11.2","2.12.0","2.12.1","2.2.0","2.2.1","2.3.0","2.3.1","2.4.0","2.4.1","2.4.2","2.5.0","2.6.0","2.7.0","2.8.0","2.8.1","2.9.0","3.0.0","3.0.1"],"database_specific":{"lightwell":{"backport_base_version":"3.0.1","remediated_version":"3.0.1+rhlw.1","repository_url":"https://packages.redhat.com/lightwell/python/remediated/"},"source":"https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-821eaab8409c2a61.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"credits":[{"name":"Red Hat Lightwell","type":"REMEDIATION_DEVELOPER"}]}