Heap Buffer Overflow in GNU Aspell's prezip utility
CVE-2026-75818 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2026-75818, released November 1, 2026. It is not reported as exploited. Patch Radar priority: Routine.
GNU Aspell prezip-bin contains a heap-based buffer overflow vulnerability in the decompressor in prog/prezip.c. The decompressor does not properly check buffer space, so a crafted compressed file can cause out-of-bounds read and write operations on the heap. An attacker who convinces a user to process a malicious compressed file with prezip-bin can trigger memory corruption, leading to a processs crash. This issue was fixed in commit 15b188437f9e0192d4ac4472ad66a4e2f62a782f which will be released in version 0.60.8.3.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| aspell · Debian 14 | 0.60.8.2-4 | DEBIAN-CVE-2026-75818 | Nov 1, 2026 |
| aspell · amzn 2023 | 12:0.60.8-7.amzn2023.0.3 | ALAS2023-2026-3275 | Nov 7, 2026 |
| aspell-debuginfo · amzn 2023 | 12:0.60.8-7.amzn2023.0.3 | ALAS2023-2026-3275 | Nov 7, 2026 |
| aspell-debugsource · amzn 2023 | 12:0.60.8-7.amzn2023.0.3 | ALAS2023-2026-3275 | Nov 7, 2026 |
| aspell-devel · amzn 2023 | 12:0.60.8-7.amzn2023.0.3 | ALAS2023-2026-3275 | Nov 7, 2026 |
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