HIGH 8.5 NVD
CVE-2026-90556
Freeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with declared worklist lengths exceeding the fixe
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
- https://github.com/freeciv/freeciv
- https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame2.c#L788
- https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame3.c#L964
- https://github.com/freeciv/freeciv/commit/75ecde3e86ddf2fe775768450e9a290a4f4d4387
- https://github.com/freeciv/freeciv/releases/tag/R3_2_6
This high severity vulnerability with a CVSS score of 8.5 was published on 2026-09-12 via NVD.
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