DEBIAN-CVE-2026-77219

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Source
https://security-tracker.debian.org/tracker/CVE-2026-77219
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-77219.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-77219
Upstream
Published
2026-08-21T21:17:06Z
Modified
2026-09-14T17:03:55Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

GNU Emacs before 31.0.91 contains an integer overflow in the PBM/PPM/PGM image loader that allows an attacker to leak heap memory contents by supplying a crafted image with large dimensions and an elevated max color index. The image loader multiplies image dimensions and channel count using signed integer arithmetic; for sufficiently large values, the result wraps to a negative number, bypassing the bounds check and causing the pixel reader to access heap memory past the end of the allocated buffer. The over-read contents are interpreted as pixel color values and rendered on screen.

References

Affected packages

Debian:12 / emacs

Package

Name
emacs
Purl
pkg:deb/debian/emacs?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:28.*
1:28.2+1-15
1:28.2+1-15+deb12u1
1:28.2+1-15+deb12u2
1:28.2+1-15+deb12u3
1:28.2+1-15+deb12u4
1:28.2+1-16
1:29.*
1:29.1+1-1
1:29.1+1-2
1:29.1+1-3
1:29.1+1-4
1:29.1+1-5~bpo12+1
1:29.1+1-5
1:29.2+1-1
1:29.2+1-2~bpo12+1
1:29.2+1-2
1:29.3+1-1
1:29.3+1-2~bpo12+1
1:29.3+1-2
1:29.3+1-3~bpo12+1
1:29.3+1-3
1:29.4+1-1
1:29.4+1-2~bpo12+1
1:29.4+1-2
1:29.4+1-3
1:29.4+1-4~bpo12+1
1:29.4+1-4
1:29.4+1-5
1:29.4+1-6
1:29.4+1-6+alpha
1:30.*
1:30.1+1-1
1:30.1+1-2
1:30.1+1-3~bpo12+1
1:30.1+1-3
1:30.1+1-4~bpo12+1
1:30.1+1-4
1:30.1+1-5~bpo12+1
1:30.1+1-5
1:30.1+1-6~bpo12+1
1:30.1+1-6
1:30.1+1-7
1:30.1+1-8
1:30.1+1-9
1:30.2+1-1
1:30.2+1-2
1:30.2+1-3
1:30.2+1-4
1:30.2+1-5
1:30.2+1-6
1:30.2+1-7
1:30.2+1-8
1:30.2+1-9
1:30.2+1-10
1:30.2+1-11

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-77219.json"

Debian:13 / emacs

Package

Name
emacs
Purl
pkg:deb/debian/emacs?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:30.*
1:30.1+1-6
1:30.1+1-6+deb13u1
1:30.1+1-7
1:30.1+1-8
1:30.1+1-9
1:30.2+1-1
1:30.2+1-2
1:30.2+1-3
1:30.2+1-4
1:30.2+1-5
1:30.2+1-6
1:30.2+1-7
1:30.2+1-8
1:30.2+1-9
1:30.2+1-10
1:30.2+1-11

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-77219.json"

Debian:14 / emacs

Package

Name
emacs
Purl
pkg:deb/debian/emacs?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:30.*
1:30.1+1-6
1:30.1+1-7
1:30.1+1-8
1:30.1+1-9
1:30.2+1-1
1:30.2+1-2
1:30.2+1-3
1:30.2+1-4
1:30.2+1-5
1:30.2+1-6
1:30.2+1-7
1:30.2+1-8
1:30.2+1-9
1:30.2+1-10
1:30.2+1-11

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-77219.json"