CVE-2026-8242Public exploitNetwork attack vector

Username enumeration via distinct login status codes

Published May 10, 2026 · Updated May 10, 2026

Observable response discrepancy in the caniasERP 8.03 Login RMI Interface allows remote attackers to enumerate valid usernames through login requests. The doAction login path returns USERNOTFOUND for absent accounts but password, lock, or expiry status codes for existing accounts. No credentials or user interaction are required, and the disclosed usernames can support session guessing or subsequent attacks.

CVSS severity3.7
Low
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Observable response discrepancy in the caniasERP 8.03 Login RMI Interface allows remote attackers to enumerate valid usernames through login requests. The doAction login path returns USERNOTFOUND for absent accounts but password, lock, or expiry status codes for existing accounts. No credentials or user interaction are required, and the disclosed usernames can support session guessing or subsequent attacks.

The record

CVE
CVE-2026-8242
Published
May 10, 2026
Updated
May 10, 2026
Vendor
Industrial Application Software
Product
caniasERP
Classifications
CWE-204, CWE-203, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 10, 2026CVE publishedPublication date reported by the CVE source.
  2. May 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.03

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Industrial Application Software · caniasERPversion=8.03

Published CVSS scores

2.9VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
2.6VulDBAV:N/AC:H/Au:N/C:P/I:N/A:N
3.7VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/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 exploitPublished

Weakness, pattern, technique

CWE-204Observable Response Discrepancy
CWE-203Information Exposure Through Discrepancy
T1087Account Discovery

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo