CVE-2026-27888 (GCVE-0-2026-27888)
Vulnerability from cvelistv5
Published
2026-02-26 00:42
Modified
2026-02-26 16:16
Severity ?
6.6 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
CWE
  • CWE-400 - Uncontrolled Resource Consumption
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.
References
Impacted products
Vendor Product Version
py-pdf pypdf Version: < 6.7.3
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Show details on NVD website

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                "id": "CVE-2026-27888",
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          "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-x7hp-r3qg-r3cj"
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        {
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    "state": "PUBLISHED"
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