Description

MuPDF versions 1.23.0 through 1.27.0 contain a double-free vulnerability in fz_fill_pixmap_from_display_list() when an exception occurs during display list rendering. The function accepts a caller-owned fz_pixmap pointer but incorrectly drops the pixmap in its error handling path before rethrowing the exception. Callers (including the barcode decoding path in fz_decode_barcode_from_display_list) also drop the same pixmap in cleanup, resulting in a double-free that can corrupt the heap and crash the process. This issue affects applications that enable and use MuPDF barcode decoding and can be triggered by processing crafted input that causes a rendering-time error while decoding barcodes.

INFO

Published Date :

2026-02-06T16:11:59.926Z

Last Modified :

2026-03-05T01:30:44.730Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2026-25556 vulnerability.

Vendors Products
Artifex
  • Mupdf

CVSS Vulnerability Scoring System

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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
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Confidentiality Impact
Integrity Impact
Availability Impact