CVE-2026-42605

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 47% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

AzuraCast is a self-hosted, all-in-one web radio management suite. Prior to version 0.23.6, the currentDirectory request parameter in the Flow.js media upload endpoint (POST /api/station/{station_id}/files/upload) is not sanitized for path traversal sequences. When combined with a local filesystem storage backend (the default), an authenticated user with media management permissions can write arbitrary files outside the station's media storage directory, achieving remote code execution by writing a PHP webshell to the web root. This issue has been patched in version 0.23.6.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
53.3%
KEV
Not listed

Published

May 9, 2026

Last Modified

May 14, 2026

Advisory Details (3)

Auto-updated May 11, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Path Traversal in `currentDirectory` Parameter Enables Remote Code Execution via Media Upload · Advisory · AzuraCast/AzuraCast · GitHub

https://github.com/AzuraCast/AzuraCast/security/advisories/GHSA-vp2f-cqqp-478j
generic

Release 0.23.6 · AzuraCast/AzuraCast · GitHub

https://github.com/AzuraCast/AzuraCast/releases/tag/0.23.6
generic

Avoid path traversal on local media filesystems and Flow uploads. · AzuraCast/AzuraCast@18c793b · GitHub

https://github.com/AzuraCast/AzuraCast/commit/18c793b4427eb49e67a2fea99a89f1c9d9dd808d

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
azuracast/azuracast0.10.0 ... 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 9× in last 7d / 45× 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.

Showing the most recent 100 of 104 total refreshes for this CVE.

  1. 2026-07-12 05:46 UTCEPSS rescore
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  74. 2026-05-23 00:07 UTCEG score recompute
  75. 2026-05-20 22:38 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-42605?
CVE-2026-42605 is a high vulnerability published on May 9, 2026. AzuraCast is a self-hosted, all-in-one web radio management suite. Prior to version 0.23.6, the currentDirectory request parameter in the Flow.js media upload endpoint (POST /api/station/{station_id}/files/upload) is not sanitized for path traversal sequences. When combined with a local filesystem…
When was CVE-2026-42605 disclosed?
CVE-2026-42605 was first published in the National Vulnerability Database on May 9, 2026, with the most recent update on May 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42605 actively exploited?
CVE-2026-42605 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 53.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-42605?
CVE-2026-42605 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-42605?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42605, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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