How severe is CVE-2026-42606?

CVE-2026-42606 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-42606 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-42606?

CVE-2026-42606 affects Azuracast. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-42606?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-42606 have an EU (EUVD) identifier?

Yes. CVE-2026-42606 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28937.

When was CVE-2026-42606 published?

CVE-2026-42606 was published on 2026-05-09 and last updated on 2026-06-17.

CVE-2026-42606

CVE-2026-42606 is a high-severity vulnerability in Azuracast with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-640.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-28937
Weakness: CWE-640
Affected product: Azuracast
Published: 2026-05-09
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-42606?: 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.
How severe is CVE-2026-42606?: CVE-2026-42606 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-42606 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-42606?: CVE-2026-42606 affects Azuracast. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-42606?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-42606 have an EU (EUVD) identifier?: Yes. CVE-2026-42606 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28937.
When was CVE-2026-42606 published?: CVE-2026-42606 was published on 2026-05-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:azuracast:azuracast:*:*:*:*:*:*:*:*

More vulnerabilities in Azuracast

CVE-2023-2531 — Critical (CVSS 9.8): Improper Restriction of Excessive Authentication Attempts in GitHub repository azuracast/azuracast prior to 0.18.3.
CVE-2026-42605 — High (CVSS 8.8): AzuraCast is a self-hosted, all-in-one web radio management suite. Prior to version 0.23.6, the currentDirectory…
CVE-2023-2191 — Medium (CVSS 4.8): Cross-site Scripting (XSS) - Stored in GitHub repository azuracast/azuracast prior to 0.18.
CVE-2025-67737 — Low (CVSS 3.1): AzuraCast is a self-hosted, all-in-one web radio management suite. Versions 0.23.1 mistakenly include an API endpoint…

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