CVE-2026-59936CWE-400

pypdf: Possible infinite loop for not terminated inline images

High · published July 8, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
49.0
In the wild
Unconfirmed
What it is

pypdf is a free and open-source pure-python PDF library. Prior to 6.14.1, an attacker can craft a PDF with a page content stream containing a not terminated inline image, causing an infinite loop during inline image end marker detection such as when extracting page text. This issue is fixed in version 6.14.1.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
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
EPSS
0.00620 · 49.0th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-07-08T19:34Z
EPSS history
Timeline
  • 08 JUL 19:34Z
    pypdf: Possible infinite loop for not terminated inline images
    cvelistv5