What is CVE-2026-33740?

CVE-2026-33740 is a medium-severity vulnerability in Espocrm, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-04-13.

How severe is CVE-2026-33740?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Espocrm

CVE-2026-33740

EspoCRM is an open source customer relationship management application. In versions 9.3.3 and below, the POST /api/v1/Email/importEml endpoint contains an Insecure Direct Object Reference (IDOR) vulnerability where the attacker-supplied fi…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (9.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Espocrm — versions < 9.3.4

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

https://github.com/espocrm/espocrm/security/advisories/GHSA-wr7j-hxf8-hc4w (x_refsource_CONFIRM)
https://github.com/espocrm/espocrm/commit/88e3ba6a7b5cab5dbc2298e2a093d3aa383aa95f (x_refsource_MISC)
https://github.com/espocrm/espocrm/releases/tag/9.3.4 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33740?: CVE-2026-33740 is a medium-severity vulnerability in Espocrm, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-04-13.
How severe is CVE-2026-33740?: Medium severity. CVSS v3 base score is 5.4 out of 10.