CVE-2023-26132Public exploitNetwork attack vector

Service interruption via unchecked __proto__ path traversal

Published Jun 10, 2023 · Updated Jan 6, 2025

Prototype pollution in Mick Hansen dottie before 2.0.4 allows remote attackers to interrupt service through a crafted property path. The set() function splits an attacker-controlled dot path, traverses proto, and assigns a property on Object.prototype. Reachability requires a consuming application to pass an untrusted path to set(); inherited polluted properties can trigger exceptions and interrupt that service.

CVSS severity7.5
High
EPSS probability1.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Prototype pollution in Mick Hansen dottie before 2.0.4 allows remote attackers to interrupt service through a crafted property path. The set() function splits an attacker-controlled dot path, traverses proto, and assigns a property on Object.prototype. Reachability requires a consuming application to pass an untrusted path to set(); inherited polluted properties can trigger exceptions and interrupt that service.

The record

CVE
CVE-2023-26132
Published
Jun 10, 2023
Updated
Jan 6, 2025
Vendor
Mick Hansen
Product
dottie
Classifications
CWE-1321
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 6, 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=0 <2.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mick Hansen · dottieversion=0 <2.0.4

Published CVSS scores

7.5SnykCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5GitHub Advisory DatabaseCVSS:3.1/AV:N/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

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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