CVE-2026-121728: SourceHut meta.sr.ht 0.56.11 before 0.89.0 Registration Authorization Bypass via /register/step2
Published Nov 3, 2026
·Updated
SourceHut meta.sr.ht 0.56.11 before 0.89.0 contains an authorization bypass vulnerability that allows unauthenticated attackers to register accounts when public registration is disabled. Attackers can obtain a CSRF token from /login and POST credentials to /register/step2, which invokes the unchecked GraphQL RegisterAccount mutation to create accounts.
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
SourceHut meta.sr.htto a version that resolves this vulnerability.Fixed in 0.89.0
Event History
Nov 3, 2026
CVE Published
via MITRE·10:55 PM
Data Sourced
via MITRE·10:55 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·11:17 PM
DescriptionSeverityWeakness