CVE-2025-55197 (GCVE-0-2025-55197)

Vulnerability from cvelistv5 – Published: 2025-08-13 23:03 – Updated: 2025-08-14 14:50
VLAI
Title
pypdf's Manipulated FlateDecode streams can exhaust RAM
Summary
pypdf is a free and open-source pure-python PDF library. Prior to version 6.0.0, an attacker can craft a PDF which leads to the RAM being exhausted. This requires just reading the file if a series of FlateDecode filters is used on a malicious cross-reference stream. Other content streams are affected on explicit access. This issue has been fixed in 6.0.0. If an update is not possible, a workaround involves including the fixed code from pypdf.filters.decompress into the existing filters file.
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
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-14 13:41 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7798 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
py-pdf pypdf Affected: < 6.0.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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