Low severity3.3NVD Advisory· Published Aug 7, 2026· Updated Nov 2, 2026
CVE-2026-71870
CVE-2026-71870
Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause large memory consumption when pypdf/_cmap.py function parse_bfrange parses unusually large source-code or destination-string tokens in a font /ToUnicode CMap during text extraction. This issue is fixed in 6.15.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pypdfPyPI | < 6.15.0 | 6.15.0 |
Affected products
7- osv-coords5 versionspkg:apk/chainguard/litellmpkg:apk/chainguard/nemopkg:apk/chainguard/open-webuipkg:apk/wolfi/open-webuipkg:rpm/opensuse/python-pypdf&distro=openSUSE%20Tumbleweed
< 1.96.2-r0+ 4 more
- (no CPE)range: < 1.96.2-r0
- (no CPE)range: < 2.7.3-r17
- (no CPE)range: < 0.11.0-r8
- (no CPE)range: < 0.11.0-r8
- (no CPE)range: < 6.16.2-1.1
Patches
Vulnerability mechanics
References
5- github.com/py-pdf/pypdf/commit/afba8080e19d29a3c256a742b340995e695b35aanvdPatchWEB
- github.com/py-pdf/pypdf/pull/3944nvdPatchWEB
- github.com/py-pdf/pypdf/security/advisories/GHSA-fp3f-mc75-235cnvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-fp3f-mc75-235cghsaADVISORY
- github.com/py-pdf/pypdf/releases/tag/6.15.0nvdRelease NotesWEB
News mentions
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