Vulnerability in azuracast/azuracast (CVE-2026-42606)
Summary
Vulnerability in azuracast/azuracast (CVE-2026-42606). Confidential information can be exposed externally. Exploitable via ApplyXForwarded. Mitigation: upgrade to 0.23.6 or later.
Original description
The description as published by the source.
AzuraCast is a self-hosted, all-in-one web radio management suite. Prior to version 0.23.6, the ApplyXForwarded middleware unconditionally trusts the client-supplied X-Forwarded-Host HTTP header with no trusted proxy allowlist. An unauthenticated attacker can poison the password reset URL sent to any user by injecting this header when triggering the forgot-password flow. When the victim clicks the poisoned link, their reset token is exfiltrated to the attacker's server. The attacker then uses the token on the real instance to reset the victim's password and destroy their 2FA configuration, achieving full account takeover. This issue has been patched in version 0.23.6.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-42606 has been found in azuracast/azuracast.
Attackers can target a specific entry point like ApplyXForwarded over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: 8.1/10.
What to do: upgrade azuracast/azuracast to 0.23.6 or later.
If unsure, ask your IT team or search "azuracast/azuracast CVE-2026-42606" on the vendor's site.
CVE-2026-42606 (azuracast/azuracast) — CWE-640 / CVSS v3 8.1
Attack vector: remote (network-reachable) / unauthenticated
Attack surface: ApplyXForwarded / fastcgi_pass / proxy_params.conf / proxy_pass
Patched: 0.23.6 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-640) exists in azuracast/azuracast. Attackers reach the vulnerable code path via ApplyXForwarded without authentication.
Check the vendor advisory for the affected versions of azuracast/azuracast. Attack surface: ApplyXForwarded / fastcgi_pass / proxy_params.conf / proxy_pass.
Severity: High (CVSS 8.1/10). Confidential information can be exposed externally.
Update to 0.23.6.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'azuracast/azuracast' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'azuracast/azuracast' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
azuracast/azuracastを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade azuracast/azuracast to 0.23.6ステージング環境で 0.23.6 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- patch github.com
- web github.com
- web github.com