AzuraCast through 0.23.8 RCE via Supervisor Configuration Injection in Timezone
Affects AzuraCast through 0.23.8 for users with station profile edit access. CVSS rates it High (8.7). No fix is listed in the checked facts.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- No fix listed
- Who is exposed
- Specific setups only
Do first: Check whether your setup matches what the bug needs. Affects AzuraCast through version 0.23.8
- Exploitation0/40No signal
- Exposure8/25Specific setups only, reachable over the network
- Reach?/20Reach: unknown (data gap). No tracked technology or package matched
- Severity9.7/10CVSS 8.7, total technical impact per CISA
- No patch5/5No patch listed yet
What would change the score
- Would score about 73 if added to CISA KEV
- Would score about 68 if CISA's SSVC rates exploitation active
- Would score about 30 if CISA's SSVC rates it automatable
CVE-2026-121428 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.7 (high) and affects AzuraCast; no fixed version is listed yet.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 23/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
AzuraCast through 0.23.8 contains a remote code execution vulnerability that allows authenticated station managers to inject Supervisor configuration through the station timezone field. Attackers can submit a timezone containing newlines to the profile edit API, defining a new Supervisor program that executes OS commands as root when configuration regenerates.
What to do
Check whether your setup matches what the bug needs.
Affects AzuraCast through version 0.23.8Workaround: Until a fix is available, limit station profile edit access to trusted administrators, since the reported attack requires that access. The checked facts do not list any other workaround.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- AzuraCast AzuraCast
through 0.23.8
Evidence 2
- Advisory
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-121428
Is CVE-2026-121428 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
What does this mean?
A user who can edit a station profile can inject commands through the timezone setting, which AzuraCast writes into its Supervisor configuration. The injected text then runs arbitrary OS commands in the AzuraCast runtime.Source: vulncheck.com, github.com
Which versions are affected by CVE-2026-121428?
AzuraCast: through 0.23.8.Source: cve.now feed data
Am I affected, and how do I check?
The record covers AzuraCast through version 0.23.8. Check the installed AzuraCast version in the installation to see whether it falls within that range. The attack needs station profile edit access, so check which accounts hold that permission.Source: vulncheck.com, github.com
How do I fix CVE-2026-121428?
The checked facts do not name a fixed version, so no upgrade target can be given. Check the AzuraCast advisory or release notes for a patched release.Source: vulncheck.com, github.com
What if there's no patch?
Until a fix is available, limit station profile edit access to trusted administrators, since the reported attack requires that access. The checked facts do not list any other workaround.Source: vulncheck.com, github.com