DEBIAN-CVE-2026-25556
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.
DEBIAN-CVE-2026-25556
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-25556
mupdf
Source reference: /affected/0/package/name
- Affected versions
- 1.25.1+ds1-6
Source reference:
/affected/0/versions1.25.1+ds1-6+deb13u1Source reference:
/affected/0/versions1.25.1+ds1-7Source reference:
/affected/0/versions1.25.1+ds1-8Source reference:
/affected/0/versions1.25.1+ds1-9Source reference:
/affected/0/versions1.27.0+ds1-1Source reference:
/affected/0/versions1.27.0+ds1-2Source reference:
/affected/0/versions1.27.0+ds1-3Source reference:
/affected/0/versions1.27.0+ds1-4Source reference:
/affected/0/versions1.27.0+ds1-5Source reference:
/affected/0/versions1.27.0+ds1-6Source reference:
/affected/0/versions1.28.0+ds1-1Source reference:
/affected/0/versions1.28.2+ds1-1Source reference:
/affected/0/versions1.28.2+ds1-2Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
mupdf
Source reference: /affected/1/package/name
- Affected versions
- 1.25.1+ds1-6
Source reference:
/affected/1/versions1.25.1+ds1-7Source reference:
/affected/1/versions1.25.1+ds1-8Source reference:
/affected/1/versions1.25.1+ds1-9Source reference:
/affected/1/versions1.27.0+ds1-1Source reference:
/affected/1/versions1.27.0+ds1-2Source reference:
/affected/1/versions - Fixed versions
- 1.27.0+ds1-3
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "mupdf",
"purl": "pkg:deb/debian/mupdf?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.25.1+ds1-6",
"1.25.1+ds1-6+deb13u1",
"1.25.1+ds1-7",
"1.25.1+ds1-8",
"1.25.1+ds1-9",
"1.27.0+ds1-1",
"1.27.0+ds1-2",
"1.27.0+ds1-3",
"1.27.0+ds1-4",
"1.27.0+ds1-5",
"1.27.0+ds1-6",
"1.28.0+ds1-1",
"1.28.2+ds1-1",
"1.28.2+ds1-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-25556.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.27.0+ds1-3"
}
]
}
],
"package": {
"name": "mupdf",
"purl": "pkg:deb/debian/mupdf?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.25.1+ds1-6",
"1.25.1+ds1-7",
"1.25.1+ds1-8",
"1.25.1+ds1-9",
"1.27.0+ds1-1",
"1.27.0+ds1-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-25556.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57493 · Revision 1
- Added to Heist Feed
- Publisher date