AIKIDO-2026-597961
lopdf is vulnerable to Denial of Service (DoS)
75
High Risk
This Affects:
lopdfTL;DR
Affected versions of lopdf are vulnerable to a denial-of-service (DoS) issue due to unbounded recursion when parsing deeply nested PDF arrays and dictionaries. A specially crafted PDF can trigger a stack overflow and terminate the process, allowing attackers to crash applications that parse untrusted PDF files.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
lopdf is vulnerable to Denial of Service (DoS) in versions 0.0.1 - 0.41.0.
How to fix this
Upgrade the lopdf library to the patch version.
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