pypdf is a free and open-source pure-python PDF library. Prior to 6.21.4, pypdf can consume excessive memory while parsing a crafted PDF page tree containing many shared resources. Page-tree flattening copies page dictionary and inherited resource entries without a document-wide entry budget, allowing the crafted resource structure to cause disproportionate allocations. This issue is fixed in version 6.21.4.

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 6.21.4, pypdf can consume excessive
    memory while parsing a crafted PDF page tree containing many shared resources. Page-tree flattening copies
    page dictionary and inherited resource entries without a document-wide entry budget, allowing the crafted
    resource structure to cause disproportionate allocations. This issue is fixed in version 6.21.4.
    (CVE-2026-119204)

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 6.21.4, pypdf can consume excessive     memory while parsing a crafted PDF page tree containing many shared resources. Page-tree flattening copies     page dictionary and inherited resource entries without a document-wide entry budget, allowing the crafted     resource structure to cause disproportionate allocations. This issue is fixed in version 6.21.4.
    (CVE-2026-119204)

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

ID	Name	Product	Family	Type	Severity
478149	Chainguard: nemo: security update to 2.7.3-r45	Tenable Cloud Security	Chainguard Local Security Checks	Local	high
478149	Chainguard: nemo: security update to 2.7.3-r45	Tenable Self-Hosted Container Security	Chainguard Local Security Checks	Local	high
478083	SCA: security update for pypdf (GHSA-cggf-277g-3q54)	Tenable Cloud Security	SCA Checks	Local	high
478083	SCA: security update for pypdf (GHSA-cggf-277g-3q54)	Tenable Self-Hosted Container Security	SCA Checks	Local	high
374235	Linux Distros Unpatched Vulnerability : CVE-2026-119204	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-119204

high

Tenable Plugins

high

high

high

high

high