# CVE-2026-73071: Vim: Use-after-free in JSON Decoding

CVE-2026-73071 is fixed in 21 products on 1 platform, first by vim 2:9.1.2141-1ubuntu4.8, released August 11, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-73071
- Priority: Routine
- CVSS: 3.3 (Low)
- EPSS: 0.0011
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 11, 2026
- Weakness: Use After Free
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | vim Debian 14 | 2:9.2.0858-1 | [DEBIAN-CVE-2026-73071](https://patchblox.com/security/data/fix/linux/debian-cve-2026-73071.md) | Aug 13, 2026 |
| Linux | vim Ubuntu 22.04.1 LTS (jammy) | 2:8.2.3995-1ubuntu2.35 | [vim 2:8.2.3995-1ubuntu2.35](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-vim-2-8.2.3995-1ubuntu2.35.md) | Aug 25, 2026 |
| Linux | vim Ubuntu 24.04.5 LTS (noble) | 2:9.1.0016-1ubuntu7.19 | [vim 2:9.1.0016-1ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-vim-2-9.1.0016-1ubuntu7.19.md) | Aug 25, 2026 |
| Linux | vim Ubuntu 26.04.1 LTS (resolute) | 2:9.1.2141-1ubuntu4.8 | [vim 2:9.1.2141-1ubuntu4.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-vim-2-9.1.2141-1ubuntu4.8.md) | Aug 11, 2026 |
| Linux | vim opensuse-leap 16.0 | 9.2.0957-160000.1.1 | [OPENSUSE-SU-2026:21671-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21671-1.md) | Aug 28, 2026 |
| Linux | vim sles 15.6 | 9.2.0957-150500.20.64.1 | [SUSE-SU-2026:3680-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3680-1.md) | Aug 21, 2026 |
| Linux | vim sles 15.7 | 9.2.0957-150500.20.64.1 | [SUSE-SU-2026:3680-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3680-1.md) | Aug 21, 2026 |
| Linux | vim sles 16.0 | 9.2.0957-160000.1.1 | [SUSE-SU-2026:23552-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23552-1.md) | Aug 28, 2026 |
| Linux | vim-athena Ubuntu 22.04.1 LTS (jammy) | 2:8.2.3995-1ubuntu2.35 | [vim-athena 2:8.2.3995-1ubuntu2.35](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-vim-athena-2-8.2.3995-1ubuntu2.35.md) | Aug 25, 2026 |
| Linux | vim-athena Ubuntu 24.04.5 LTS (noble) | 2:9.1.0016-1ubuntu7.19 | [vim-athena 2:9.1.0016-1ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-vim-athena-2-9.1.0016-1ubuntu7.19.md) | Aug 25, 2026 |
| Linux | vim-common Ubuntu 22.04.1 LTS (jammy) | 2:8.2.3995-1ubuntu2.35 | [vim-common 2:8.2.3995-1ubuntu2.35](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-vim-common-2-8.2.3995-1ubuntu2.35.md) | Aug 25, 2026 |
| Linux | vim-common Ubuntu 24.04.5 LTS (noble) | 2:9.1.0016-1ubuntu7.19 | [vim-common 2:9.1.0016-1ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-vim-common-2-9.1.0016-1ubuntu7.19.md) | Aug 25, 2026 |
| Linux | vim-common Ubuntu 26.04.1 LTS (resolute) | 2:9.1.2141-1ubuntu4.8 | [vim-common 2:9.1.2141-1ubuntu4.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-vim-common-2-9.1.2141-1ubuntu4.8.md) | Aug 11, 2026 |
| Linux | vim-common amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |
| Linux | vim-data amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |
| Linux | vim-debuginfo amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |
| Linux | vim-debugsource amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |
| Linux | vim-default-editor amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |
| Linux | vim-enhanced amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |
| Linux | vim-enhanced-debuginfo amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |
| Linux | vim-filesystem amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |
| Linux | vim-gtk Ubuntu 22.04.1 LTS (jammy) | 2:8.2.3995-1ubuntu2.35 | [vim-gtk 2:8.2.3995-1ubuntu2.35](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-vim-gtk-2-8.2.3995-1ubuntu2.35.md) | Aug 25, 2026 |
| Linux | vim-gtk3 Ubuntu 22.04.1 LTS (jammy) | 2:8.2.3995-1ubuntu2.35 | [vim-gtk3 2:8.2.3995-1ubuntu2.35](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-vim-gtk3-2-8.2.3995-1ubuntu2.35.md) | Aug 25, 2026 |
| Linux | vim-gtk3 Ubuntu 24.04.5 LTS (noble) | 2:9.1.0016-1ubuntu7.19 | [vim-gtk3 2:9.1.0016-1ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-vim-gtk3-2-9.1.0016-1ubuntu7.19.md) | Aug 25, 2026 |
| Linux | vim-gtk3 Ubuntu 26.04.1 LTS (resolute) | 2:9.1.2141-1ubuntu4.8 | [vim-gtk3 2:9.1.2141-1ubuntu4.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-vim-gtk3-2-9.1.2141-1ubuntu4.8.md) | Aug 11, 2026 |
| Linux | vim-gui-common Ubuntu 22.04.1 LTS (jammy) | 2:8.2.3995-1ubuntu2.35 | [vim-gui-common 2:8.2.3995-1ubuntu2.35](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-vim-gui-common-2-8.2.3995-1ubuntu2.35.md) | Aug 25, 2026 |
| Linux | vim-gui-common Ubuntu 24.04.5 LTS (noble) | 2:9.1.0016-1ubuntu7.19 | [vim-gui-common 2:9.1.0016-1ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-vim-gui-common-2-9.1.0016-1ubuntu7.19.md) | Aug 25, 2026 |
| Linux | vim-gui-common Ubuntu 26.04.1 LTS (resolute) | 2:9.1.2141-1ubuntu4.8 | [vim-gui-common 2:9.1.2141-1ubuntu4.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-vim-gui-common-2-9.1.2141-1ubuntu4.8.md) | Aug 11, 2026 |
| Linux | vim-minimal amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |
| Linux | vim-minimal-debuginfo amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |
| Linux | vim-motif Ubuntu 24.04.5 LTS (noble) | 2:9.1.0016-1ubuntu7.19 | [vim-motif 2:9.1.0016-1ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-vim-motif-2-9.1.0016-1ubuntu7.19.md) | Aug 25, 2026 |
| Linux | vim-motif Ubuntu 26.04.1 LTS (resolute) | 2:9.1.2141-1ubuntu4.8 | [vim-motif 2:9.1.2141-1ubuntu4.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-vim-motif-2-9.1.2141-1ubuntu4.8.md) | Aug 11, 2026 |
| Linux | vim-nox Ubuntu 22.04.1 LTS (jammy) | 2:8.2.3995-1ubuntu2.35 | [vim-nox 2:8.2.3995-1ubuntu2.35](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-vim-nox-2-8.2.3995-1ubuntu2.35.md) | Aug 25, 2026 |
| Linux | vim-nox Ubuntu 24.04.5 LTS (noble) | 2:9.1.0016-1ubuntu7.19 | [vim-nox 2:9.1.0016-1ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-vim-nox-2-9.1.0016-1ubuntu7.19.md) | Aug 25, 2026 |
| Linux | vim-nox Ubuntu 26.04.1 LTS (resolute) | 2:9.1.2141-1ubuntu4.8 | [vim-nox 2:9.1.2141-1ubuntu4.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-vim-nox-2-9.1.2141-1ubuntu4.8.md) | Aug 11, 2026 |
| Linux | vim-runtime Ubuntu 22.04.1 LTS (jammy) | 2:8.2.3995-1ubuntu2.35 | [vim-runtime 2:8.2.3995-1ubuntu2.35](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-vim-runtime-2-8.2.3995-1ubuntu2.35.md) | Aug 25, 2026 |
| Linux | vim-runtime Ubuntu 24.04.5 LTS (noble) | 2:9.1.0016-1ubuntu7.19 | [vim-runtime 2:9.1.0016-1ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-vim-runtime-2-9.1.0016-1ubuntu7.19.md) | Aug 25, 2026 |
| Linux | vim-runtime Ubuntu 26.04.1 LTS (resolute) | 2:9.1.2141-1ubuntu4.8 | [vim-runtime 2:9.1.2141-1ubuntu4.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-vim-runtime-2-9.1.2141-1ubuntu4.8.md) | Aug 11, 2026 |
| Linux | vim-tiny Ubuntu 22.04.1 LTS (jammy) | 2:8.2.3995-1ubuntu2.35 | [vim-tiny 2:8.2.3995-1ubuntu2.35](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-vim-tiny-2-8.2.3995-1ubuntu2.35.md) | Aug 25, 2026 |
| Linux | vim-tiny Ubuntu 24.04.5 LTS (noble) | 2:9.1.0016-1ubuntu7.19 | [vim-tiny 2:9.1.0016-1ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-vim-tiny-2-9.1.0016-1ubuntu7.19.md) | Aug 25, 2026 |
| Linux | vim-tiny Ubuntu 26.04.1 LTS (resolute) | 2:9.1.2141-1ubuntu4.8 | [vim-tiny 2:9.1.2141-1ubuntu4.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-vim-tiny-2-9.1.2141-1ubuntu4.8.md) | Aug 11, 2026 |
| Linux | xxd Ubuntu 22.04.1 LTS (jammy) | 2:8.2.3995-1ubuntu2.35 | [xxd 2:8.2.3995-1ubuntu2.35](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xxd-2-8.2.3995-1ubuntu2.35.md) | Aug 25, 2026 |
| Linux | xxd Ubuntu 24.04.5 LTS (noble) | 2:9.1.0016-1ubuntu7.19 | [xxd 2:9.1.0016-1ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-xxd-2-9.1.0016-1ubuntu7.19.md) | Aug 25, 2026 |
| Linux | xxd Ubuntu 26.04.1 LTS (resolute) | 2:9.1.2141-1ubuntu4.8 | [xxd 2:9.1.2141-1ubuntu4.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-xxd-2-9.1.2141-1ubuntu4.8.md) | Aug 11, 2026 |
| Linux | xxd amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |
| Linux | xxd-debuginfo amzn 2023 | 2:9.2.920-1.amzn2023.0.1 | [ALAS2023-2026-2108](https://patchblox.com/security/data/fix/linux/alas2023-2026-2108.md) | Aug 31, 2026 |

---

Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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