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Advisory severityMedium6.5Red Hat Linux

Medium [CVE-2026-59936] Denial of Service via crafted PDF inline image

This medium-severity Red Hat Linux advisory covers CVE-2026-59936 affecting Exploit Intelligence, OpenShift Lightspeed, Red Hat Ansible Automation Platform 2.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-59936 Source published Source updated

VulniPulse record published Record updated

CVE-2026-59936
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

Summary

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. When a user processes this crafted PDF, such as during text extraction, the vulnerability causes an infinite loop, leading to a Denial of Service (DoS) condition.

This issue impacts the availability of the pypdf application. This Moderate-impact flaw in the pypdf library can lead to a denial of service.

A remote attacker could provide a specially crafted PDF document containing an unterminated inline image, causing an infinite loop when the document is processed, such as during text extraction. This issue primarily affects the availability of applications that handle untrusted PDF content.

Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H). Weakness: CWE-835.

Affected Red Hat products: Exploit Intelligence; OpenShift Lightspeed; Red Hat Ansible Automation Platform 2; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI); Red Hat Quay 3. Red Hat does not currently list a fixing RHSA for this CVE.

Is CVE-2026-59936 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-59936 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-59936?

Upgrade to a fixed release named by Red Hat:

  • 6.14.1

Confirm against the vendor advisory before you patch.

Affected versions
  • < 6.14.1

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Fixed versions
  • 6.14.1

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Mitigation

Upgrade to a fixed release: 6.14.1. That is the remediation for this advisory.

The vendor advisory may list interim mitigations or workarounds not captured here. Review it before change work.

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

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