CVE-2026-28804 — pypdf: Inefficient decoding of ASCIIHexDecode streams
pypdf is a free and open-source pure-python PDF library. Prior to version 6.7.5, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requi…
Published: 2026-03-06 · CVSS: 6.9 · CVSS 4.0
pypdf is a free and open-source pure-python PDF library. Prior to version 6.7.5, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /ASCIIHexDecode filter. This issue has been patched in version 6.7.5.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7