CVE catalog

CVE-2026-25556

mupdf: CVE-2026-25556

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Feb 6, 2026, 4:11:59 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.54% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	mupdf	sid	`1.28.2+ds1-2`	fixed
Debian	mupdf	forky	`1.28.2+ds1-2`	fixed
Debian	mupdf	trixie	`1.25.1+ds1-6+deb13u1`	vulnerable
Debian	mupdf	trixie-security	`1.25.1+ds1-6+deb13u1`	vulnerable
Debian	mupdf	bookworm	`1.21.1+ds2-1+deb12u1`	not affected
Debian	mupdf	bookworm-security	`1.21.1+ds2-1+deb12u1`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	mupdf	source	sid	`1.27.0+ds1-3`	not yet assigned	Not reported	[1127318]
Debian	mupdf	source	forky	`1.27.0+ds1-3`	not yet assigned	Not reported	[1127318]
Debian	mupdf	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1127318]
Debian	mupdf	source	bookworm	`Not affected`	unimportant	Not reported	[1127318]

[Debian bug #1127318]

Notes

[trixie] mupdf: Minor issue

OpenFactory catalog packages

[Debian 13 (Trixie)]

[libmupdf25.1]Affected
Source package: [mupdf]
Details (4)
- 1.25.1+ds1-6+deb13u1 · amd64 · trixie
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · arm64 · trixie
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · amd64 · trixie-security
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · arm64 · trixie-security
  Affected
  dsa · mupdf · debian · 13
[libmupdf-dev]Affected
Source package: [mupdf]
Details (4)
- 1.25.1+ds1-6+deb13u1 · amd64 · trixie
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · arm64 · trixie
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · amd64 · trixie-security
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · arm64 · trixie-security
  Affected
  dsa · mupdf · debian · 13
[mupdf]Affected
Details (4)
- 1.25.1+ds1-6+deb13u1 · amd64 · trixie
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · arm64 · trixie
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · amd64 · trixie-security
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · arm64 · trixie-security
  Affected
  dsa · mupdf · debian · 13
[mupdf-tools]Affected
Source package: [mupdf]
Details (4)
- 1.25.1+ds1-6+deb13u1 · amd64 · trixie
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · arm64 · trixie
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · amd64 · trixie-security
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · arm64 · trixie-security
  Affected
  dsa · mupdf · debian · 13
[python3-mupdf]Affected
Source package: [mupdf]
Details (4)
- 1.25.1+ds1-6+deb13u1 · amd64 · trixie
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · arm64 · trixie
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · amd64 · trixie-security
  Affected
  dsa · mupdf · debian · 13
- 1.25.1+ds1-6+deb13u1 · arm64 · trixie-security
  Affected
  dsa · mupdf · debian · 13

[Debian 12 (Bookworm)]

[libmupdf-dev]Not affected
Source package: [mupdf]
Details (4)
- 1.21.1+ds2-1+deb12u1 · amd64 · bookworm
  Not affected
  dsa · mupdf · debian · bookworm
- 1.21.1+ds2-1+deb12u1 · arm64 · bookworm
  Not affected
  dsa · mupdf · debian · bookworm
- 1.21.1+ds2-1+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · mupdf · debian · bookworm
- 1.21.1+ds2-1+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · mupdf · debian · bookworm
[mupdf]Not affected
Details (4)
- 1.21.1+ds2-1+deb12u1 · amd64 · bookworm
  Not affected
  dsa · mupdf · debian · bookworm
- 1.21.1+ds2-1+deb12u1 · arm64 · bookworm
  Not affected
  dsa · mupdf · debian · bookworm
- 1.21.1+ds2-1+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · mupdf · debian · bookworm
- 1.21.1+ds2-1+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · mupdf · debian · bookworm
[mupdf-tools]Not affected
Source package: [mupdf]
Details (4)
- 1.21.1+ds2-1+deb12u1 · amd64 · bookworm
  Not affected
  dsa · mupdf · debian · bookworm
- 1.21.1+ds2-1+deb12u1 · arm64 · bookworm
  Not affected
  dsa · mupdf · debian · bookworm
- 1.21.1+ds2-1+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · mupdf · debian · bookworm
- 1.21.1+ds2-1+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · mupdf · debian · bookworm

Observed: Oct 27, 2026, 9:44:28 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]