CVE-2026-90934 json
EspoCRM before 10.0.4 Field-level Security Bypass via Attendees
published 2mo ago modified last mo. also EUVD-2026-77452 , GHSA-hpgx-8qg3-5w7v
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository espocrm/espocrm. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
EspoCRM before 10.0.4 contains a field-level security bypass vulnerability in the meeting and call attendees endpoints that allows authenticated users to read restricted email addresses. Attackers can recover hidden attendee emails by exploiting incorrect ACL scope validation that checks parent event permissions instead of attendee entity permissions.
Patch / fix
- espocrm espocrm 10.0.4
Is CVE-2026-90934 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- last mo.
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- espocrm espocrm
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/espocrm/espocrm/security/advisories/GHSA-hpgx-8qg3-5w7v
vendor-advisory, advisory
-
vulncheck.com
/advisories/espocrm-before-10.0.4-field-level-security-bypass-via-attendees
third-party-advisory
Sources
- CVE List CVE-2026-90934
- NVD CVE-2026-90934
- Maintainer advisory GHSA-hpgx-8qg3-5w7v
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of espocrm/espocrm published their own advisory on GitHub. Reviewed sources take precedence over it.