CVE-2026-121728

Medium

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.

SeverityMedium

CVSS5.3

Exploit probability—

ProductSourcehut Meta.sr.ht

PublishedNov 3, 2026

First seenNov 4, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

SourceHut meta.sr.ht0.89.0 or later

Patches

git.sr.ht/~sircmpwn/meta.sr.ht/commit/e471ffe75bb6ef11366e46c3b721dd0278f746b5

Vendor advisories

git.sr.ht/~sircmpwn/meta.sr.ht/refs/0.89.0

Affected products

Product	Affected versions	Fixed in
SourceHut meta.sr.ht	0.56.11 ≤ v < 0.89.0	0.89.0

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