CVE-2026-61526Network attack vectorHinoki check available

Reflected XSS via unescaped exception messages

Published Jul 30, 2026 · Updated Jul 30, 2026

Reflected XSS in @adonisjs/http-server 8.0.0-next.0 through 8.2.0 and 9.0.0 through 9.0.2 allows remote attackers to execute JavaScript. The default HTML path in ExceptionHandler.handle inserts an error.message containing the requested missing-route URL into a paragraph without HTML escaping. Exploitation requires disabled debug mode, no applicable custom status page or JSON response, and a victim opening the crafted URL; script runs in the application origin.

CVSS severity6.1
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Reflected XSS in @adonisjs/http-server 8.0.0-next.0 through 8.2.0 and 9.0.0 through 9.0.2 allows remote attackers to execute JavaScript. The default HTML path in ExceptionHandler.handle inserts an error.message containing the requested missing-route URL into a paragraph without HTML escaping. Exploitation requires disabled debug mode, no applicable custom status page or JSON response, and a victim opening the crafted URL; script runs in the application origin.

The record

CVE
CVE-2026-61526
Published
Jul 30, 2026
Updated
Jul 30, 2026
Vendor
AdonisJS
Product
@adonisjs/http-server
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 30, 2026Record 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=>= 8.0.0-next.0, < 8.2.1
  2. Affected versionversion=>= 9.0.0, < 9.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

AdonisJS · @adonisjs/http-serverversion=>= 8.0.0-next.0, < 8.2.1; version=>= 9.0.0, < 9.1.0

Published CVSS scores

6.1GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A: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')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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