CVE-2026-73071

Name	CVE-2026-73071
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
vim (PTS)	bookworm	2:9.0.1378-2+deb12u2	fixed
	trixie	2:9.1.1230-2	fixed
	forky, sid	2:9.2.0858-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version
vim	source	bullseye	(not affected)
vim	source	bookworm	(not affected)
vim	source	trixie	(not affected)
vim	source	(unstable)	2:9.2.0858-1

Notes

[trixie] - vim <not-affected> (Vulnerable code not present)
[bookworm] - vim <not-affected> (Vulnerable code not present)
[bullseye] - vim <not-affected> (Vulnerable code not present)
https://github.com/vim/vim/security/advisories/GHSA-69ch-22ch-r887
Fixed by: https://github.com/vim/vim/commit/f8126294a526aa80c5123eb3079e325daee9ec75 (v9.2.0844)