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Security Advisories

CVE-2026-28804

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-28804

Severity

Unknown
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Summary

pypdf: Inefficient decoding of ASCIIHexDecode streams

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.

References

Affected packages

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