Low severity3.3GHSA Advisory· Published Jun 22, 2026· Updated Jun 25, 2026
CVE-2026-49460
CVE-2026-49460
Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.12.2, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /FlateDecode filter with a PNG predictor. This vulnerability is fixed in 6.12.2.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pypdfPyPI | < 6.12.2 | 6.12.2 |
Affected products
3Patches
Vulnerability mechanics
References
4- github.com/py-pdf/pypdf/pull/3806nvdIssue TrackingPatchWEB
- github.com/py-pdf/pypdf/releases/tag/6.12.2nvdPatchRelease NotesWEB
- github.com/py-pdf/pypdf/security/advisories/GHSA-5hgr-hg42-57jgnvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-5hgr-hg42-57jgghsaADVISORY
News mentions
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