CVE-2026-90556

freeciv: Freeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with d...

CVE-2026-90556 is fixed in 9 products on 1 platform, first by FEDORA-2026-75BDE5D061, released September 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0020
10th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
freeciv · Debian 14 3.2.6+ds-1 DEBIAN-CVE-2026-90556 Sep 13, 2026
freeciv · Fedora 43 3.2.6-1.fc43 FEDORA-2026-75BDE5D061 Sep 10, 2026
freeciv-common · Fedora 43 3.2.6-1.fc43 FEDORA-2026-75BDE5D061 Sep 10, 2026
freeciv-common-debuginfo · Fedora 43 3.2.6-1.fc43 FEDORA-2026-75BDE5D061 Sep 10, 2026
freeciv-debuginfo · Fedora 43 3.2.6-1.fc43 FEDORA-2026-75BDE5D061 Sep 10, 2026
freeciv-debugsource · Fedora 43 3.2.6-1.fc43 FEDORA-2026-75BDE5D061 Sep 10, 2026
freeciv-gtk · Fedora 43 3.2.6-1.fc43 FEDORA-2026-75BDE5D061 Sep 10, 2026
freeciv-gtk-debuginfo · Fedora 43 3.2.6-1.fc43 FEDORA-2026-75BDE5D061 Sep 10, 2026
freeciv-qt · Fedora 43 3.2.6-1.fc43 FEDORA-2026-75BDE5D061 Sep 10, 2026
freeciv-qt-debuginfo · Fedora 43 3.2.6-1.fc43 FEDORA-2026-75BDE5D061 Sep 10, 2026

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