CVE-2026-24688

CVE-2026-24688 - pypdf - Circular Reference DoS Vulnerability This repo includes proof of concept code for triggering CVE-2026-24688. Summary Critical Denial of Service vulnerability in pypdf's outline bookmark parsing logic. When processing a PDF with circular outline references, the parser ente...

cve-2026-24688

CVE-2026-24688 - pypdf - Circular Reference DoS Vulnerability This repo includes proof of concept code for triggering CVE-2026-24688. Summary Critical Denial of Service vulnerability in pypdf's outline bookmark parsing logic. When processing a PDF with circular outline references, the parser ente...

CVE-2026-113792

A flaw was found in pypdf. A remote attacker can trigger a Denial of Service DoS by supplying a specially crafted PDF document containing a cyclic outline structure. When the application inspects the document using the outline search function PdfWriter.findoutlineitem, it enters an infinite loop...

GHSA-9MX8-4J7G-633P pypdf: Possible infinite loop when removing tree items

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires removing an object from a tree, for example an outline item. Patches This has been fixed in pypdf==6.20.1. Workarounds If you cannot upgrade yet, consider applying the changes from PR 418...

pypdf: Possible infinite loop when removing tree items

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires removing an object from a tree, for example an outline item. Patches This has been fixed in pypdf==6.20.1. Workarounds If you cannot upgrade yet, consider applying the changes from PR 418...

CVE-2026-113611

Outline before 1.8.0 contains an improper access revocation vulnerability that allows deleted administrators to keep receiving document contents because UserDeletedProcessor never disables their WebhookSubscription rows. Former admins who registered webhooks before deletion continue receiving ful...

CVE-2026-113611

Versions of Outline prior to 1.8.0 are vulnerable to an improper access revocation flaw. The UserDeletedProcessor fails to disable WebhookSubscription rows when an administrator is deleted. Consequently, former administrators who registered webhooks before their account deletion continue to recei...

CVE-2026-113611 Outline before 1.8.0 Information Disclosure via Orphaned Webhook Subscriptions

Outline before 1.8.0 contains an improper access revocation vulnerability that allows deleted administrators to keep receiving document contents because UserDeletedProcessor never disables their WebhookSubscription rows. Former admins who registered webhooks before deletion continue receiving ful...

CVE-2026-113611 Outline before 1.8.0 Information Disclosure via Orphaned Webhook Subscriptions

Outline before 1.8.0 contains an improper access revocation vulnerability that allows deleted administrators to keep receiving document contents because UserDeletedProcessor never disables their WebhookSubscription rows. Former admins who registered webhooks before deletion continue receiving ful...

Astra Linux – Vulnerability in libass

In libass 0.14.0, the call to assoutlineconstruct's outlinestroke function causes a signed integer overflow...

Astra Linux – Vulnerability in poppler-22

A vulnerability in Outline.cc for Poppler prior to version 23.06.0 allows a remote attacker to cause a Denial of Service DoS attack through a crafted PDF file using the OutlineItem::open method...

EUVD-2026-57811

SiYuan: Outline state for any document, including documents forbidden to readers, is returned by /api/storage/getOutlineStorage with no access check...

PT-2026-105482

Summary /api/storage/getOutlineStorage is registered with CheckAuth only and performs no authorization of any kind. Given a document identifier it returns that document's stored outline state, regardless of the document's publish tier. The two write endpoints for the same data, setOutlineStorage...

Ubuntu 14.04 LTS / 18.04 LTS / 20.04 LTS / 24.04 LTS / 26.04 LTS : libass vulnerabilities (USN-8815-1)

The remote Ubuntu 14.04 LTS / 18.04 LTS / 20.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8815-1 advisory. It was discovered that libass incorrectly handled parsing operations for specific nested character string...

USN-8815-1 libass vulnerabilities

It was discovered that libass incorrectly handled parsing operations for specific nested character strings. An attacker could use this issue to cause libass to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS,...

Linux Distros Unpatched Vulnerability : CVE-2026-84310

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/doccommon.py getoutline to consume long...

Excessive Iteration

Overview pypdf is an A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files Affected versions of this package are vulnerable to Excessive Iteration in its document outline retrieval, which processes outline entries and nested outline paths without bounding t...

DEBIAN-CVE-2026-84310

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/doccommon.py getoutline to consume long runtimes and large amounts of memory when retrieving document outlines with large numbers of entries or deeply nested reused paths becaus...

CVE-2026-84310

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/doccommon.py getoutline to consume long runtimes and large amounts of memory when retrieving document outlines with large numbers of entries or deeply nested reused paths becaus...

CVE-2026-84310

A flaw was found in pypdf. A remote attacker could craft a malicious PDF document with specially designed outlines. Processing this document would cause the pypdf library to consume excessive processing time and memory, leading to a Denial of Service DoS condition. This vulnerability is due to a...