Use After Free Affecting poppler package, versions <22.12.0-2+deb12u2


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.16% (6th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-POPPLER-18496245
  • published1 Aug 2026
  • disclosed10 Oct 2025

Introduced: 10 Oct 2025

CVE-2025-52885  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Echo:latest poppler to version 22.12.0-2+deb12u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream poppler package and not the poppler package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Poppler ia a library for rendering PDF files, and examining or modifying their structure. A use-after-free (write) vulnerability has been detected in versions Poppler prior to 25.10.0 within the StructTreeRoot class. The issue arises from the use of raw pointers to elements of a std::vector, which can lead to dangling pointers when the vector is resized. The vulnerability stems from the way that refToParentMap stores references to std::vector elements using raw pointers. These pointers may become invalid when the vector is resized. This vulnerability is a common security problem involving the use of raw pointers to std::vectors. Internally, std::vector stores its elements in a dynamically allocated array. When the array reaches its capacity and a new element is added, the vector reallocates a larger block of memory and moves all the existing elements to the new location. At this point if any pointers to elements are stored before a resize occurs, they become dangling pointers once the reallocation happens. Version 25.10.0 contains a patch for the issue.

CVSS Base Scores

version 3.1