CVE-2026-73071
Vim: Use-after-free in JSON Decoding
- State
- Published
- Severity
- 3.3 Low
- Published
- Aug 11, 2026
- Updated
- Aug 11, 2026
- Reserved
- Aug 10, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L | GitHub_M |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
vimvim |
|
References
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