CVE-2026-113793Medium· 6.0▾ Sunlitpypdf is a free and open-source pure-python PDF library. Prior to 6.20.1, removing an object from a crafted cyclic PDF tree, such as an outline item, can enter an infinite loop and block the current process. This issue is fixed in versio…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 33 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 23.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.5%
Last analysed / modified upstream
pypdf is a free and open-source pure-python PDF library. Prior to 6.20.1, removing an object from a crafted cyclic PDF tree, such as an outline item, can enter an infinite loop and block the current process. This issue is fixed in version 6.20.1.
pypdf < 6.20.1Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
pypdf < 6.20.1Patched in:
pypdf 6.20.1Connected by shared product, vendor, weakness, or advisory.
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CVE-2026-119203Highpypdf has possible infinite loop when hitting EOF in standard xref table during trailer search
CVE-2026-84309Medium· 5.5pypdf is a free and open-source pure-python PDF library