Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, an attacker can craft a PDF that causes long runtimes when the pypdf/_utils.py function read_until_whitespace reads a stream containing a long run of bytes without whitespace. The function repeatedly performs immutable bytes concatenation in a one-byte loop, causing quadratic processing cost for the long non-whitespace input. This issue is fixed in version 6.15.0.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
🟠 pypdf, Inefficient Algorithmic Complexity, #CVE-2026-82398 (MEDIUM) -DC-Sep2026-2088 https://dailycve.com/pypdf-inefficient-algorithmic-complexity-cve-2026-82398-medium-dc-sep2026-2088/
Post summary
The text announces the discovery of CVE-2026-82398, a medium‑severity issue with pypdf’s algorithmic complexity; it provides objective details but no PoC, exploits, patches, or evidence of active usage.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | pypdf_project | pypdf | - | - | - |