CVE-2026-4528

HIGH

trueleaf ApiFlow URL Validation http_proxy.service.ts validateUrlSecurity server-side request forgery

Title source: cna
STIX 2.1

Description

A vulnerability was determined in trueleaf ApiFlow 0.9.7. The impacted element is the function validateUrlSecurity of the file packages/server/src/service/proxy/http_proxy.service.ts of the component URL Validation Handler. This manipulation causes server-side request forgery. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

Scores

CVSS v3 7.3
EPSS 0.0005
EPSS Percentile 16.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-918
Status published
Products (1)
trueleaf/ApiFlow 0.9.7
Published Mar 21, 2026
Tracked Since Mar 22, 2026