pypdf vulnerabilities and fixes

Recent CVEs affecting pypdf, with upgrade or downgrade steps. 2 tracked.

pypdf has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-08-07. Highest priority: CVE-2026-71852 (score 12/100).

• CVE-2026-71852 LOW 3.3 UPGRADE pypdf is a free and open-source pure-python PDF library
• CVE-2026-71870 LOW 3.3 UPGRADE pypdf is a free and open-source pure-python PDF library

FAQ

How do I fix pypdf vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is pypdf being exploited right now?

None of the tracked pypdf CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which pypdf CVE should I patch first?

CVE-2026-71852 currently ranks highest (12/100): pypdf is a free and open-source pure-python PDF library.

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