CVE-2026-22690Medium· 6.5▾ SunlitA flaw was found in pypdf. A remote attacker can exploit this vulnerability by crafting a malicious PDF file that omits the /Root entry in the trailer and uses a large /Size value. This can lead to excessively long processing times when th…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.4%
0.4% → 0.4%
Last analysed / modified upstream
— → 6.5
low → medium
A flaw was found in pypdf. A remote attacker can exploit this vulnerability by crafting a malicious PDF file that omits the /Root entry in the trailer and uses a large /Size value. This can lead to excessively long processing times when the PDF is read in non-strict mode, resulting in a Denial of Service (DoS) for the affected system.
pypdf: pypdf: Denial of Service via crafted PDF with missing /Root object — rated Moderate by Red Hat. Released 2026-01-10, updated 2026-10-15.
Affected:
No fix planned:
Fix deferred
Affected packages:
pypdf < 6.6.0Patched in:
pypdf 6.6.0Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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