CVE-2026-73071
Low
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.
SeverityLow
CVSS3.3
Exploit probability—
ProductVim
PublishedAug 11, 2026
First seenAug 11, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- vim vim9.2.0844 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vim vim | 9.2.0511 ≤ v < 9.2.0844 | 9.2.0844 |
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