CVE-2024-32886: Vitess vulnerable to infinite memory consumption and vtgate crash

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-08 · updated 2026-06-17
Weakness: CWE-835

Description

Vitess is a database clustering system for horizontal scaling of MySQL. When executing the following simple query, the `vtgate` will go into an endless loop that also keeps consuming memory and eventually will run out of memory. This vulnerability is fixed in 19.0.4, 18.0.5, and 17.0.7.

Affected products

vitessio vitess: before 17.0.7; from 18.0.0, < 18.0.5; from 19.0.0, < 19.0.4

References

https://github.com/vitessio/vitess/blob/8f6cfaaa643a08dc111395a75a2d250ee746cfa8/go/mysql/collations/charset/convert.go#L73-L79
https://github.com/vitessio/vitess/blob/8f6cfaaa643a08dc111395a75a2d250ee746cfa8/go/mysql/collations/charset/unicode/utf16.go#L69-L71
https://github.com/vitessio/vitess/commit/2fd5ba1dbf6e9b32fdfdaf869d130066b1b5c0df
https://github.com/vitessio/vitess/commit/9df4b66550e46b5d7079e21ed0e1b0f49f92b055
https://github.com/vitessio/vitess/commit/c46dc5b6a4329a10589ca928392218d96031ac8d
https://github.com/vitessio/vitess/commit/d438adf7e34a6cf00fe441db80842ec669a99202
https://github.com/vitessio/vitess/security/advisories/GHSA-649x-hxfx-57j2
https://github.com/vitessio/vitess/blob/8f6cfaaa643a08dc111395a75a2d250ee746cfa8/go/mysql/collations/charset/convert.go#L73-L79
https://github.com/vitessio/vitess/blob/8f6cfaaa643a08dc111395a75a2d250ee746cfa8/go/mysql/collations/charset/unicode/utf16.go#L69-L71
https://github.com/vitessio/vitess/commit/2fd5ba1dbf6e9b32fdfdaf869d130066b1b5c0df
https://github.com/vitessio/vitess/commit/9df4b66550e46b5d7079e21ed0e1b0f49f92b055
https://github.com/vitessio/vitess/commit/c46dc5b6a4329a10589ca928392218d96031ac8d

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