CVE-2024-10086Network attack vector

Reflected XSS via inferred HTTP response type

Published Oct 30, 2024 · Updated Jan 10, 2025

Reflected XSS in HashiCorp Consul and Consul Enterprise allows remote attackers to run script in a user's browser via crafted input. The agent HTTP response handler returns user-influenced error text without an explicit Content-Type header, causing Go's net/http package to infer the media type from the body. Exploitation requires a user to open the crafted request; the resulting script can disclose or alter data available to that user's Consul session.

CVSS severity6.1
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in HashiCorp Consul and Consul Enterprise allows remote attackers to run script in a user's browser via crafted input. The agent HTTP response handler returns user-influenced error text without an explicit Content-Type header, causing Go's net/http package to infer the media type from the body. Exploitation requires a user to open the crafted request; the resulting script can disclose or alter data available to that user's Consul session.

The record

CVE
CVE-2024-10086
Published
Oct 30, 2024
Updated
Jan 10, 2025
Vendor
HashiCorp
Product
Consul Enterprise
Classifications
CWE-79, CAPEC-63, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Jan 10, 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=1.4.1 <1.20.0 changes=[{"at":"1.19.3","status":"unaffected"},{"at":"1.18.5","status":"unaffected"},{"at":"1.15.15","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HashiCorp · Consul Enterpriseversion=1.4.1 <1.20.0 changes=[{"at":"1.19.3","status":"unaffected"},{"at":"1.18.5","status":"unaffected"},{"at":"1.15.15","status":"unaffected"}]
HashiCorp · Consulversion=1.4.1 <1.20.0

Published CVSS scores

6.1HashiCorpCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.3GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (XSS)
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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