CVE-2026-102996High· 8.7▾ Twilightpypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can provide a TrueType or Type1 simple font with an unusually large /Widths array, causing pypdf/_font.py Font._collect_tt_t1_character_widths to pro…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 47.8 · likelihood 0 · 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.
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can provide a TrueType or Type1 simple font with an unusually large /Widths array, causing pypdf/_font.py Font._collect_tt_t1_character_widths to process entries beyond the 256 character codes meaningful for a simple font and consume excessive memory during operations such as text extraction. This issue is fixed in version 6.18.1.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-102997High· 8.7pypdf is a free and open-source pure-python PDF library
CVE-2026-102995High· 8.7pypdf is a free and open-source pure-python PDF library
CVE-2026-102999High· 8.7pypdf is a free and open-source pure-python PDF library
CVE-2026-103000High· 8.7pypdf is a free and open-source pure-python PDF library
CVE-2026-102998High· 8.7pypdf is a free and open-source pure-python PDF library
CVE-2026-102993High· 8.7pypdf is a free and open-source pure-python PDF library