CVE-2026-31826 — Vulnerability intelligence

py-pdf — pypdf

Published: 2026-03-10T22:16:20.483

CVSS

6.8

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. This vulnerability is fixed in 6.8.0.

Sources

• CVE-2026-31826
• Issue Tracking, Patch
• Product, Release Notes
• Patch, Vendor Advisory