9.3 Critical

danmuapi before 1.21.7 contains an authentication bypass vulnerability that allows unauthenticated attackers to modify server environment…

CVE-2026-116485

danmuapi before 1.21.7 contains an authentication bypass vulnerability that allows unauthenticated attackers to modify server environment configuration when the default TOKEN is used and ADMINTOKEN is unset. Attackers can send POST requests to /api/env/set, /api/env/add, or /api/env/del to set ADMINTOKEN, lock out operators, redirect OTHERSERVER or PROXYURL for SSRF, and trigger redeployment.

Scanned for across the internet

Nuclei template

Nucleidanmu_api - Unauthenticated Access to Admin API via Default Token

A Nuclei detection template exists for this, which means it is scanned for at internet scale rather than looked for deliberately.

Signals come from Exploit-DB, Metasploit, Nuclei and published proof-of-concept repositories. Their absence means nothing was found, not that nothing exists.

Assessment

CVSS: 9.3 (v4.0)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nuclei template
Published: 26 October 2026
Last updated: 26 October 2026
Weakness: CWE-306
Assigner: disclosure@vulncheck.com

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

At the source

References

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curl https://cve.zerocrew.in/api/cve/CVE-2026-116485