CVE-2023-29195Public exploitNetwork attack vector

Management-function denial via slash-containing shard names

Published May 11, 2023 · Updated Jan 24, 2025

Improper input validation in Vitess before 16.0.2 allows remote authenticated users to interrupt cluster-management functions via VTAdmin. TopoServer's ValidateShardName accepts a slash in a non-range shard name, causing later code to parse the stored path as a different keyspace-and-shard boundary. VTAdmin shard-creation permission is required; one crafted shard blocks keyspace views and subsequent shard creation without stopping query serving.

CVSS severity4.1
Medium
EPSS probability0.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Vitess before 16.0.2 allows remote authenticated users to interrupt cluster-management functions via VTAdmin. TopoServer's ValidateShardName accepts a slash in a non-range shard name, causing later code to parse the stored path as a different keyspace-and-shard boundary. VTAdmin shard-creation permission is required; one crafted shard blocks keyspace views and subsequent shard creation without stopping query serving.

The record

CVE
CVE-2023-29195
Published
May 11, 2023
Updated
Jan 24, 2025
Vendor
Vitess
Product
Vitess
Classifications
CWE-703, CWE-20, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 24, 2025Record 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=< 16.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Vitess · Vitessversion=< 16.0.2

Published CVSS scores

4.3National Institute of Standards and TechnologyCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
4.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-703Improper Check or Handling of Exceptional Conditions
CWE-20Improper Input Validation
T1499Endpoint Denial of Service

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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