DEBIAN-CVE-2026-26740

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-26740
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-26740.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-26740
Upstream
  • CVE-2026-26740
Published
2026-03-18T18:16:26.220Z
Modified
2026-03-19T09:00:49.032450Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
Summary
[none]
Details

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.

References

Affected packages

Debian:11 / giflib

Package

Name
giflib
Purl
pkg:deb/debian/giflib?arch=source

Affected ranges

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

Affected versions

5.*
5.1.9-2
5.1.9-2.1
5.2.1-1
5.2.1-2
5.2.1-2.1
5.2.1-2.2
5.2.1-2.3
5.2.1-2.4
5.2.1-2.5
5.2.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-26740.json"

Debian:12 / giflib

Package

Name
giflib
Purl
pkg:deb/debian/giflib?arch=source

Affected ranges

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

Affected versions

5.*
5.2.1-2.5
5.2.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-26740.json"

Debian:13 / giflib

Package

Name
giflib
Purl
pkg:deb/debian/giflib?arch=source

Affected ranges

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

Affected versions

5.*
5.2.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-26740.json"

Debian:14 / giflib

Package

Name
giflib
Purl
pkg:deb/debian/giflib?arch=source

Affected ranges

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

Affected versions

5.*
5.2.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-26740.json"