CVE-2026-55089Proof of concept (PoC) published · CISA
Etherpad: JWT `admin` claim presence-only check lets non-admin OAuth users invoke every Etherpad HTTP API endpoint
CVSS score
9.9
EPSS probability
%0.5
Risk score
0.0
Published
2 mo ago
Related Security News
Articles and analysis bulletins in which the press and security publications have covered this vulnerability:
No verified news item has been matched to this CVE yet.
Similar Vulnerabilities
6.1
CVE-2026-55087Etherpad: x-proxy-path header reflected into admin HTML/JS/CSS (cache-poisoning XSS) and concatenated into redirect (open-redirect)
Patch verified Public Exploits:1EPSS %1
5.3
CVE-2026-55090Etherpad: Stored XSS in HTML export via unescaped attribute-pool values
Patch verifiedEPSS %1
Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-55089"