Medium severity5.3NVD Advisory· Published Nov 3, 2026
CVE-2026-121728
CVE-2026-121728
Description
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.
Affected products
1- Range: <0.89.0
Patches
Vulnerability mechanics
References
5- blog.arusekk.pl/posts/srht-disabled-registration-bypass/nvd
- git.sr.ht/~sircmpwn/meta.sr.ht/commit/1ea24685a76f6456245d0bc7fe6accf6231c4044nvd
- git.sr.ht/~sircmpwn/meta.sr.ht/commit/e471ffe75bb6ef11366e46c3b721dd0278f746b5nvd
- git.sr.ht/~sircmpwn/meta.sr.ht/tree/0.88.9/item/metasrht/blueprints/auth.pynvd
- www.vulncheck.com/advisories/sourcehut-meta-sr-ht-0.56.11-before-0.89.0-registration-authorization-bypass-via-register-step2nvd
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