cvedb.io
CVE-2026-27888
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-02-26T01:16:25.470 · Last modified 2026-06-17T10:27:49.520

Summary

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.3, an attacker who uses this vulnerability can craft a PDF which leads to the RAM being exhausted. This requires accessing the `xfa` property of a reader or writer and the corresponding stream being compressed using `/FlateDecode`. This has been fixed in pypdf 6.7.3. As a workaround, apply the patch manually.

Affected products

pypdf_project — pypdf

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.