pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF can provide unusually large alphabetical page-label values that cause pypdf/_page_labels.py to generate strings beyond a reasonable page-label length when an application retrieves document page labels, consuming excessive memory and potentially making the application unavailable. This issue is fixed in version 6.19.0.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF can provide
    unusually large alphabetical page-label values that cause pypdf/_page_labels.py to generate strings beyond
    a reasonable page-label length when an application retrieves document page labels, consuming excessive
    memory and potentially making the application unavailable. This issue is fixed in version 6.19.0.
    (CVE-2026-103000)

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 6.19.0, a crafted PDF can provide     unusually large alphabetical page-label values that cause pypdf/_page_labels.py to generate strings beyond     a reasonable page-label length when an application retrieves document page labels, consuming excessive     memory and potentially making the application unavailable. This issue is fixed in version 6.19.0.
    (CVE-2026-103000)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
471649	Chainguard: multiple open-webui packages: security update to 0.11.4-r3	Tenable Cloud Security	Chainguard Local Security Checks	Local	high
471649	Chainguard: multiple open-webui packages: security update to 0.11.4-r3	Tenable Self-Hosted Container Security	Chainguard Local Security Checks	Local	high
471606	Echo: pypdf: security update to 6.19.0	Tenable Cloud Security	Echo Local Security Checks	Local	high
471606	Echo: pypdf: security update to 6.19.0	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
359493	Linux Distros Unpatched Vulnerability : CVE-2026-103000	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-103000

high

Tenable Plugins

high

high

high

high

high