CVE-2026-40260 — pypdf: Manipulated XMP metadata entity declarations can exhaust RAM
pypdf is a free and open-source pure-python PDF library. In versions prior to 6.10.0, manipulated XMP metadata entity declarations can exhaust RAM. An attacker who exploits this…
Published: 2026-04-16 · CVSS: 6.9 · CVSS 4.0
pypdf is a free and open-source pure-python PDF library. In versions prior to 6.10.0, manipulated XMP metadata entity declarations can exhaust RAM. An attacker who exploits this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the XMP metadata. This issue has been fixed in version 6.10.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7