vitess allows users to create keyspaces that can deny access to already existing keyspaces

### Impact Users can either intentionally or inadvertently create a keyspace containing `/` characters such that from that point on, anyone who tries to view keyspaces from VTAdmin will receive an error. Trying to list all the keyspaces using `vtctldclient GetKeyspaces` will also return an error. Note that all other keyspaces can still be administered using the CLI (vtctldclient). ### Patches v16.0.1 (corresponding to 0.16.1 on pkg.go.dev) ### Workarounds Delete the offending keyspace using a CLI client (vtctldclient) ``` vtctldclient --server ... DeleteKeyspace a/b ``` Found during a security audit sponsored by the [CNCF](https://cncf.io) and facilitated by [OSTIF](https://ostif.org).

CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

Severity from

GitHub (reviewed advisory)

Weakness

CWE-20, CWE-703

Also known as

CVE-2023-29194, GO-2023-1717

• github.com/vitessio/vitess/security/advisories/GHSA-735r-hv67-g38f
• nvd.nist.gov/vuln/detail/CVE-2023-29194
• github.com/vitessio/vitess/commit/adf10196760ad0b3991a7aa7a8580a544e6ddf88
• github.com/vitessio/vitess
• github.com/vitessio/vitess/commits/v0.16.1