Medium severity5.5NVD Advisory· Published May 28, 2026· Updated May 29, 2026
CVE-2026-48735
CVE-2026-48735
Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.12.1, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing large XMP metadata, possibly with lots of unnecessary elements. This vulnerability is fixed in 6.12.1.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pypdfPyPI | < 6.12.1 | 6.12.1 |
Affected products
4- ghsa-coords2 versions
< 6.12.1+ 1 more
- (no CPE)range: < 6.12.1
- (no CPE)range: < 6.13.0-1.1
Patches
Vulnerability mechanics
References
5- github.com/py-pdf/pypdf/pull/3796nvdIssue TrackingPatchWEB
- github.com/py-pdf/pypdf/security/advisories/GHSA-wjqc-6w8f-h24cnvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-wjqc-6w8f-h24cghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-48735ghsaADVISORY
- github.com/py-pdf/pypdf/releases/tag/6.12.1nvdRelease NotesWEB
News mentions
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