CVE-2024-32886Public exploitNetwork attack vector

Authenticated vtgate crash via stalled multibyte decoding

Published May 8, 2024 · Updated Aug 2, 2024

Denial of service in Vitess before 17.0.7, 18.0.0 through 18.0.4, and 19.0.0 through 19.0.3 allows remote authenticated users to crash vtgate. Multibyte collation decoders return a zero-byte width for truncated UTF-16, UTF-32, or UCS-2 input, so the conversion loop never advances and appends replacement bytes without bound. A user with sufficient query privileges can submit the crafted character-set literal over vtgate's network SQL interface, exhausting memory and terminating the vtgate process.

CVSS severity4.9
Medium
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Vitess before 17.0.7, 18.0.0 through 18.0.4, and 19.0.0 through 19.0.3 allows remote authenticated users to crash vtgate. Multibyte collation decoders return a zero-byte width for truncated UTF-16, UTF-32, or UCS-2 input, so the conversion loop never advances and appends replacement bytes without bound. A user with sufficient query privileges can submit the crafted character-set literal over vtgate's network SQL interface, exhausting memory and terminating the vtgate process.

The record

CVE
CVE-2024-32886
Published
May 8, 2024
Updated
Aug 2, 2024
Vendor
Vitess
Product
Vitess
Classifications
CWE-835, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 17.0.7
  2. Affected versionversion=>= 18.0.0, < 18.0.5
  3. Affected versionversion=>= 19.0.0, < 19.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Vitess · Vitessversion=< 17.0.7; version=>= 18.0.0, < 18.0.5; version=>= 19.0.0, < 19.0.4

Published CVSS scores

4.9GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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