CVE-2026-54530

Name: CVE-2026-54530
Creator: NVD / NIST
Published: 2026-06-22T21:16:25.42+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.9/10EPSS 0.12%

Last modified Jun 25, 2026

CVE-2026-54530 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. pypdf is a free and open-source pure-python PDF library. Prior to 6.13.0, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. EPSS estimates a 0.12% chance of exploitation in the next 30 days.

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.13.0, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires extracting the text in layout mode. This vulnerability is fixed in 6.13.0.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

6.9/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.12%

2.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-835

Affected Software

Vendor	Product	Versions
Pypdf Project	Pypdf	< 6.13.0

References

https://github.com/py-pdf/pypdf/pull/3830Issue Tracking, Patch
https://github.com/py-pdf/pypdf/releases/tag/6.13.0Patch, Release Notes
https://github.com/py-pdf/pypdf/security/advisories/GHSA-52x6-gq3r-vpf4Patch, Vendor Advisory

Timeline

Published: Jun 22, 2026
Last Modified: Jun 25, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-54530?

How severe is CVE-2026-54530?

CVE-2026-54530 has a CVSS score of 6.9/10 (MEDIUM severity). The EPSS model estimates a 0.12% probability of exploitation in the next 30 days.

How do I fix CVE-2026-54530?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-54530?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST