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.
History

Thu, 13 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Low


Tue, 11 Aug 2026 23:30:00 +0000

Type Values Removed Values Added
First Time appeared Vim
Vim vim
Vendors & Products Vim
Vim vim

Tue, 11 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 11 Aug 2026 15:45:00 +0000

Type Values Removed Values Added
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.
Title Vim: Use-after-free in JSON Decoding
Weaknesses CWE-416
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-08-11T15:29:30.287Z

Updated: 2026-08-11T16:47:48.674Z

Reserved: 2026-08-10T19:37:41.444Z

Link: CVE-2026-73071

cve-icon Vulnrichment

Updated: 2026-08-11T16:47:33.480Z

cve-icon NVD

Status : Received

Published: 2026-08-11T16:17:38.413

Modified: 2026-08-11T17:19:15.437

Link: CVE-2026-73071

cve-icon Redhat

Severity : Low

Publid Date: 2026-08-11T15:29:30Z

Links: CVE-2026-73071 - Bugzilla