Medium [CVE-2026-54530] Denial of Service via crafted PDF processing
This medium-severity Red Hat Linux advisory covers CVE-2026-54530 affecting Exploit Intelligence, OpenShift Lightspeed, Red Hat Ansible Automation Platform 2.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published Record updated
Summary
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.
This vulnerability results in a Denial of Service (DoS), making the affected system unresponsive. This Moderate impact flaw in pypdf affects Red Hat products that process untrusted PDF files and extract text in layout mode.
An attacker could provide a specially crafted PDF, leading to an infinite loop and a Denial of Service. The vulnerability requires specific processing conditions, contributing to its Moderate severity.
Affected method: extract_text(extraction_mode="layout") Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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-2026-54530 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-54530 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-2026-54530?
Upgrade to a fixed release named by Red Hat:
- 6.13.0
Confirm against the vendor advisory before you patch.
- < 6.13.0
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
Mitigation checklist
- To mitigate this issue, avoid processing untrusted PDF files with applications that utilize the pypdf library for text extraction in layout mode. If possible, configure applications to disable text extraction in layout mode or restrict the sources of PDF files to trusted origins. Update to 6.13.0+ version to fix the vulnerability.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
Get an email when Red Hat publishes the next one.
See Red Hat's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).
More Red Hat Linux advisories
- CVE-2026-48710May 26, 2026Security restriction bypass via malformed HTTP Host header
- CVE-2026-119977Oct 31, 2026Arbitrary code execution via predictable upgrade staging paths
- CVE-2026-111497Oct 22, 2026Out-of-Bounds Write in Google Brotli Decoder
- CVE-2026-109619Oct 21, 2026fatal error handling retains stale request state leading to use-after-free
- CVE-2026-109618Oct 21, 2026OOM bailout during request parsing leads to memory corruption and RCE
- CVE-2026-97229Oct 13, 2026integer overflow issue in CI/CD regular expression compiler
iPhone and Android apps · New on the App Store
Monitor future Red Hat Linux CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.