CVE-2026-73071
Vim: Use-after-free in JSON Decoding
CVSS Score
3.3
EPSS Score
0.0%
EPSS Percentile
0th
Vim is an open source, command line text editor. From 9.2.0511 until 9.2.0844, json_decode_item() in src/json.c can retain a stale pointer after json_decode_string() invokes channel_fill() to refill and free the current buffer, causing the error path to read freed memory instead of reader->js_buf + reader->js_used when an invalid JSON string spans buffers. This issue is fixed in version 9.2.0844.
| CWE | CWE-416 |
| Vendor | vim |
| Product | vim |
| Published | Aug 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
vim / vim
>= 9.2.0511, < 9.2.0844