What is CVE-2026-33534?

CVE-2026-33534 is a medium-severity vulnerability in Espocrm, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2026-04-13.

How severe is CVE-2026-33534?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Is CVE-2026-33534 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SSRF in Espocrm

CVE-2026-33534

EspoCRM is an open source customer relationship management application. Versions 9.3.3 and below have an authenticated Server-Side Request Forgery (SSRF) vulnerability that allows bypassing the internal-host validation logic by using alter…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.009 (75.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Espocrm — versions < 9.3.4

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

Public proof-of-concept exploits

EntroVyx/CVE-2026-33534

References

https://github.com/espocrm/espocrm/security/advisories/GHSA-h7gx-8gwv-7g73 (x_refsource_CONFIRM)
https://github.com/espocrm/espocrm/releases/tag/9.3.4 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33534?: CVE-2026-33534 is a medium-severity vulnerability in Espocrm, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2026-04-13.
How severe is CVE-2026-33534?: Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2026-33534 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.