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SuiteCRM: V8 OAuth2 Username Enumeration

6.9MediumCNA
Exploited
No known exploitation
Fix
Fixed in 7.15.2, 8.10.2
Who is exposed
Not reported

Do first: Upgrade to a fixed version: 7.15.2, 8.10.2.

Published
Last modified
24/100 · provisional
None on Exploit-DB, Metasploit or GitHub

Summary

SuiteCRM, an open-source customer relationship management application, has a flaw in its V8 OAuth2 password-grant endpoint that returns different error messages for an invalid username and an invalid password. A remote attacker who does not need to log in can use those differences to identify valid usernames and then target those accounts with password guessing or social-engineering attacks.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original description

SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Prior to 7.15.2 and 8.10.2, the /legacy/Api/V8/OAuth2 password-grant endpoint returns distinct error messages for an invalid username and an invalid password. An unauthenticated remote attacker can use those response differences to enumerate valid CRM usernames and target confirmed accounts with password spraying, credential stuffing, brute-force, or social-engineering attacks. This issue is fixed in versions 7.15.2 and 8.10.2.

cve.now Index

24Pcve.now Index 24 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure17/25No login or user action needed per the CVSS vector, reachable over the network without a login · Unknown: No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity6.9/10CVSS 6.9
  • No patch0/5No signal

What would change the score

  • Would score about 69 if added to CISA KEV
  • Would score about 64 if CISA's SSVC rates exploitation active
  • Would score about 29 if advisories confirm default setups are exposed

What to do

  • Upgrade to a fixed version: 7.15.2, 8.10.2.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • SuiteCRM SuiteCRM

    fixed in 7.15.2; From 8.0.0 · fixed in 8.10.2

Evidence 5

  1. Advisory
  2. Repository
  3. Repository
  4. Repository
  5. Repository

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-100362

Is CVE-2026-100362 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-100362?

SuiteCRM: before 7.15.2; from 8.0.0 before 8.10.2.Source: cve.now feed data

How do I fix CVE-2026-100362?

Upgrade to a fixed version: 7.15.2, 8.10.2.Source: cve.now feed data