CVE-2026-119206pypdf: Possible long runtimes when retrieving page labels

Açıklama

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.3, pypdf can take excessive time to retrieve page labels from a crafted PDF containing a flat page-label number tree with many ranges. The page_labels property resolves each page independently and repeatedly scans the same /Nums array from the beginning, causing work to grow with both the page count and the number of label ranges. This issue is fixed in version 6.21.3.

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

Kaynaklar ve yamalar

• https://github.com/py-pdf/pypdf/security/advisories/GHSA-42gh-23hr-vphw PatchVendor Advisory
• https://github.com/py-pdf/pypdf/pull/4251 Patch
• https://github.com/py-pdf/pypdf/commit/b891fef37000cd86baa6e9848a3387d080b3b03e Patch
• https://github.com/py-pdf/pypdf/releases/tag/6.21.3 Release Notes