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CVE-2026-28804
Published: Mar 6, 2026
Modified: Mar 6, 2026
PUBLISHED
Description
pypdf is a free and open-source pure-python PDF library. Prior to version 6.7.5, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /ASCIIHexDecode filter. This issue has been patched in version 6.7.5.
| Vendor | Product | Versions |
|---|---|---|
py-pdf | pypdf | affected < 6.7.5 |
Weaknesses (CWE)
References
https://github.com/py-pdf/pypdf/security/advisories/GHSA-9m86-7pmv-2852
x_refsource_CONFIRM
https://github.com/py-pdf/pypdf/pull/3666
x_refsource_MISC
https://github.com/py-pdf/pypdf/releases/tag/6.7.5
x_refsource_MISC
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