Medium severity5.5NVD Advisory· Published May 28, 2026· Updated May 29, 2026
CVE-2026-48155
CVE-2026-48155
Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires extracting text in layout mode with large character offsets. This vulnerability is fixed in 6.12.0.
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 | < 6.12.0 | 6.12.0 |
Affected products
7- osv-coords4 versionspkg:apk/chainguard/litellmpkg:apk/chainguard/open-webuipkg:apk/wolfi/open-webuipkg:rpm/opensuse/python-pypdf&distro=openSUSE%20Tumbleweed
< 1.88.1-r1+ 3 more
- (no CPE)range: < 1.88.1-r1
- (no CPE)range: < 0.9.6-r4
- (no CPE)range: < 0.9.6-r4
- (no CPE)range: < 6.13.0-1.1
Patches
Vulnerability mechanics
References
5- github.com/py-pdf/pypdf/pull/3790nvdIssue TrackingPatchWEB
- github.com/py-pdf/pypdf/security/advisories/GHSA-cj93-chg6-vgv8nvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-cj93-chg6-vgv8ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-48155ghsaADVISORY
- github.com/py-pdf/pypdf/releases/tag/6.12.0nvdRelease NotesWEB
News mentions
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