DEBIAN-CVE-2026-90556

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Source
https://security-tracker.debian.org/tracker/CVE-2026-90556
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90556.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-90556
Upstream
Published
2026-09-12T18:16:44Z
Modified
2026-09-16T17:00:08Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Freeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with declared worklist lengths exceeding the fixed array bound of 64 elements. Attackers can craft malicious savegame files that write past the entries array into adjacent heap-allocated struct fields, potentially corrupting memory when a user or server operator loads the file.

References

Affected packages

Debian:12 / freeciv

Package

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

Affected ranges

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

Affected versions

3.*
3.0.6-1
3.0.6-1+deb12u1
3.0.8-1
3.0.8-2
3.1.0+ds-1
3.1.1+ds-1
3.1.2+ds-1
3.1.2+ds-2~exp1
3.1.2+ds-2
3.1.4+ds-1
3.1.4+ds-2
3.2.0+ds-1
3.2.1+ds-1
3.2.1+ds-2
3.2.2+ds-1
3.2.4+ds-1
3.2.5+ds-1
3.2.6+ds-1

Ecosystem specific 

{
    "urgency": "end-of-life"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90556.json"

Debian:13 / freeciv

Package

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

Affected ranges

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

Affected versions

3.*
3.1.4+ds-2
3.1.4+ds-2+deb13u1
3.2.0+ds-1
3.2.1+ds-1
3.2.1+ds-2
3.2.2+ds-1
3.2.4+ds-1
3.2.5+ds-1
3.2.6+ds-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90556.json"

Debian:14 / freeciv

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.2.6+ds-1

Affected versions

3.*
3.1.4+ds-2
3.2.0+ds-1
3.2.1+ds-1
3.2.1+ds-2
3.2.2+ds-1
3.2.4+ds-1
3.2.5+ds-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90556.json"