Detections
Analytics
Amazon Linux 2 : vim, --advisory ALAS2-2026-3829 (ALAS-2026-3829)
high Nessus Plugin ID 332045
Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3829 advisory.Vim is an open source, command line text editor. Prior to 9.2.0736, the PHP omni-completion script in runtime/autoload/phpcomplete.vim interpolates a class or trait name, taken from the contents of the edited buffer, into a search() pattern that is run via win_execute() without escaping. A name containing a single quote can terminate the search() string argument early, and because the bar is honored as an Ex command separator, the remainder of the name is run as Ex commands; via the :! command this allows arbitrary operating-system command execution when a victim opens a crafted PHP file and invokes omni-completion.
This issue is fixed in version 9.2.0736. (CVE-2026-59856)
Vim is an open source, command line text editor. Prior to 9.2.0735, the C omni-completion script in runtime/autoload/ccomplete.vim interpolates the typeref: or typename: extension field of a tags entry, without escaping, into a :vimgrep pattern that is run through :execute. Because :vimgrep honors the bar as a command separator, a crafted tag field can close the search pattern and append an arbitrary Ex command;
opening a hostile .c file whose project tags file contains such an entry and invoking C omni-completion runs that command as the editing user. This issue is fixed in version 9.2.0735. (CVE-2026-59858)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update vim' or or 'yum update --advisory ALAS2-2026-3829' to update your system.See Also
https://alas.aws.amazon.com//AL2/ALAS2-2026-3829.html
https://alas.aws.amazon.com/faqs.html
Plugin Details
Severity: High
ID: 332045
File Name: al2_ALAS-2026-3829.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 8/4/2026
Updated: 8/4/2026
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 58.15
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-59858
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.4
Threat Score: 7
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Information
CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:vim-common, p-cpe:/a:amazon:linux:vim-data, p-cpe:/a:amazon:linux:vim-debuginfo, p-cpe:/a:amazon:linux:vim-enhanced, p-cpe:/a:amazon:linux:vim-filesystem, p-cpe:/a:amazon:linux:vim-minimal, p-cpe:/a:amazon:linux:vim-x11, p-cpe:/a:amazon:linux:xxd
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/4/2026
Vulnerability Publication Date: 7/9/2026
Reference Information
CVE: CVE-2026-59856, CVE-2026-59858