pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF with form field values can cause pypdf/generic/_appearance_stream.py appearance-stream generation to repeat invariant selection-data work inside a loop when an application updates fields with flattening enabled, resulting in excessive runtimes and application unavailability. 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 with form field
    values can cause pypdf/generic/_appearance_stream.py appearance-stream generation to repeat invariant
    selection-data work inside a loop when an application updates fields with flattening enabled, resulting in
    excessive runtimes and application unavailability. This issue is fixed in version 6.19.0.
    (CVE-2026-102998)

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 with form field     values can cause pypdf/generic/_appearance_stream.py appearance-stream generation to repeat invariant     selection-data work inside a loop when an application updates fields with flattening enabled, resulting in     excessive runtimes and application unavailability. This issue is fixed in version 6.19.0.
    (CVE-2026-102998)

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

ID	Name	Product	Family	Type	Severity
471651	Chainguard: multiple open-webui packages: security update to 0.11.4-r3	Tenable Cloud Security	Chainguard Local Security Checks	Local	high
471651	Chainguard: multiple open-webui packages: security update to 0.11.4-r3	Tenable Self-Hosted Container Security	Chainguard Local Security Checks	Local	high
471124	Echo: pypdf: security update to 6.19.0	Tenable Cloud Security	Echo Local Security Checks	Local	high
471124	Echo: pypdf: security update to 6.19.0	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
359483	Linux Distros Unpatched Vulnerability : CVE-2026-102998	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-102998

high

Tenable Plugins

high

high

high

high

high