AzuraCast before 0.23.6 contains a missing permission check vulnerability in the GET /api/station/{station_id}/file/{id}/play endpoint that allows authenticated users to download media files from any station. Attackers can enumerate media files using sequential IDs and exfiltrate the complete media library of stations they lack permissions for.
CVE-2026-100855
MEDIUMPre-NVD 6.56.5—Trending — 3 sources updated this weekElevated
EchelonGraph scoreHIGH confidence
Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-27. A secondary CVSS source baseline 6.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.5Exploit: Elevated riskExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- 6.5
- EG Score
- 6.5MEDIUMhigh confidence
- EG Risk
- 45EG Risk 45/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity65% × 45%Exploitation40% × 40%Automatability0% × 15%CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.2%
- EPSS %ILE
- 9th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
September 27, 2026
Last Modified
September 30, 2026
Advisory Details (2)
Auto-updated Sep 27, 2026🔬 Proof of concept available. Patch available. Sources: github.
generic
AzuraCast before 0.23.6 Missing Permission Check via /play | Advisories | VulnCheck
https://www.vulncheck.com/advisories/azuracast-before-0.23.6-missing-permission-check-via-playgithub Patch Available🟡 PoC Available
Missing Permission Check on Media File Download Allows Cross-Station Data Exfiltration · Advisory · AzuraCast/AzuraCast · GitHub
https://github.com/AzuraCast/AzuraCast/security/advisories/GHSA-qff7-q5fm-8p76Vendor Advisories for CVE-2026-100855(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| azuracast/azuracast | 0.10.0 ... 0.9.9 (80 versions) | 0.23.6 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 20× in last 7d / 23× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-03 17:54 UTCEG score recompute
- 2026-10-03 17:54 UTCGHSA enrichment
- 2026-10-03 14:25 UTCEPSS rescore
- 2026-10-02 17:27 UTCEG score recompute
- 2026-10-02 17:27 UTCGHSA enrichment
- 2026-10-01 19:49 UTCEPSS rescore
- 2026-10-01 17:00 UTCGHSA enrichment
- 2026-09-30 16:27 UTCEG score recompute
- 2026-09-30 16:27 UTCGHSA enrichment
- 2026-09-30 15:31 UTCEG score recompute
- 2026-09-30 15:31 UTCGHSA enrichment
- 2026-09-30 15:02 UTCEPSS rescore
- 2026-09-29 23:47 UTCEG score recompute
- 2026-09-29 23:47 UTCGHSA enrichment
- 2026-09-29 15:20 UTCEPSS rescore
- 2026-09-28 20:58 UTCEG score recompute
- 2026-09-28 20:58 UTCGHSA enrichment
- 2026-09-28 13:50 UTCEPSS rescore
- 2026-09-28 03:02 UTCEG score recompute
- 2026-09-28 03:02 UTCGHSA enrichment
- 2026-09-27 02:36 UTCEG score recompute
- 2026-09-27 01:53 UTCEG score recompute
- 2026-09-27 01:49 UTCMITRE cvelistV5first tracked
Related CVEs(same product + same CWE)
Same product
8 shownPackagist:azuracast/azuracast
Frequently asked(5)
What is CVE-2026-100855?
CVE-2026-100855 is a medium vulnerability published on September 27, 2026. AzuraCast before 0.23.6 contains a missing permission check vulnerability in the GET /api/station/{station_id}/file/{id}/play endpoint that allows authenticated users to download media files from any station. Attackers can enumerate media files using sequential IDs and exfiltrate the complete media…
When was CVE-2026-100855 disclosed?
CVE-2026-100855 was first published on September 27, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-100855 actively exploited?
CVE-2026-100855 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100855?
CVE-2026-100855 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100855?
A fix for CVE-2026-100855 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-100855 are linked in the Vendor Advisories panel on this page.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-100855
Is Your Infrastructure Affected by CVE-2026-100855?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.