CVE-2024-34075Public exploit

Service interruption via prototype property lookup

Published May 3, 2024 · Updated Aug 2, 2024

Denial of service in Xiboon Kurwov 3.1.0 through 3.2.4 allows local users to interrupt Markov-chain generation via crafted dataset strings. MarkovData.getNext removes a trailing character before indexing finalData, so a forbidden name followed by a space resolves an inherited prototype function and then calls endsWith on undefined. Access to a consuming application's dataset is sufficient; the crafted entry stops output generation without reported confidentiality or integrity impact.

CVSS severity6.2
Medium
EPSS probability0.30%
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 Xiboon Kurwov 3.1.0 through 3.2.4 allows local users to interrupt Markov-chain generation via crafted dataset strings. MarkovData.getNext removes a trailing character before indexing finalData, so a forbidden name followed by a space resolves an inherited prototype function and then calls endsWith on undefined. Access to a consuming application's dataset is sufficient; the crafted entry stops output generation without reported confidentiality or integrity impact.

The record

CVE
CVE-2024-34075
Published
May 3, 2024
Updated
Aug 2, 2024
Vendor
Xiboon
Product
Kurwov
Classifications
CWE-502, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 3, 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=>= 3.1.0, < 3.2.5
  2. Affected versionversion=3.1.0 <=3.2.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Xiboon · Kurwovversion=>= 3.1.0, < 3.2.5; version=3.1.0 <=3.2.5

Published CVSS scores

6.2GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:N/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
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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