Amazon Linux 2 Security Advisory: ALAS2-2026-3251
Advisory Released Date: 2026-04-30
Advisory Updated Date: 2026-04-30
A modeline sandbox bypass in Vim allows arbitrary OS command execution when a user opens a crafted file. The complete, guitabtooltip and printheader options are missing the P_MLE flag, allowing a modeline to be executed. Additionally, the mapset() function lacks a check_secure() call, allowing it to be abused from sandboxed expressions.
An attacker who can deliver a crafted file to a victim achieves arbitrary command execution with the privileges of the user running Vim. (CVE-2026-34982)
Affected Packages:
vim
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update vim or yum update --advisory ALAS2-2026-3251 to update your system.
aarch64:
vim-common-9.0.2153-1.amzn2.0.5.aarch64
vim-minimal-9.0.2153-1.amzn2.0.5.aarch64
vim-enhanced-9.0.2153-1.amzn2.0.5.aarch64
vim-X11-9.0.2153-1.amzn2.0.5.aarch64
xxd-9.0.2153-1.amzn2.0.5.aarch64
vim-debuginfo-9.0.2153-1.amzn2.0.5.aarch64
i686:
vim-common-9.0.2153-1.amzn2.0.5.i686
vim-minimal-9.0.2153-1.amzn2.0.5.i686
vim-enhanced-9.0.2153-1.amzn2.0.5.i686
vim-X11-9.0.2153-1.amzn2.0.5.i686
xxd-9.0.2153-1.amzn2.0.5.i686
vim-debuginfo-9.0.2153-1.amzn2.0.5.i686
noarch:
vim-filesystem-9.0.2153-1.amzn2.0.5.noarch
vim-data-9.0.2153-1.amzn2.0.5.noarch
src:
vim-9.0.2153-1.amzn2.0.5.src
x86_64:
vim-common-9.0.2153-1.amzn2.0.5.x86_64
vim-minimal-9.0.2153-1.amzn2.0.5.x86_64
vim-enhanced-9.0.2153-1.amzn2.0.5.x86_64
vim-X11-9.0.2153-1.amzn2.0.5.x86_64
xxd-9.0.2153-1.amzn2.0.5.x86_64
vim-debuginfo-9.0.2153-1.amzn2.0.5.x86_64