CVE-2026-90556
highFreeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with declared worklist lengths exceeding the fix…
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/freeciv/freeciv disclosure@vulncheck.com
- https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame2.c#L788 disclosure@vulncheck.com
- https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame3.c#L964 disclosure@vulncheck.com
- https://github.com/freeciv/freeciv/commit/75ecde3e86ddf2fe775768450e9a290a4f4d4387 disclosure@vulncheck.com
- https://github.com/freeciv/freeciv/releases/tag/R3_2_6 disclosure@vulncheck.com
- https://redmine.freeciv.org/issues/2161 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/freeciv-before-3.2.6-heap-buffer-overflow-via-worklis... disclosure@vulncheck.com