CVE-2026-4528

HIGH

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

Title source: cna

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.

References (4)

Core 4

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-352316 | trueleaf ApiFlow URL Validation http_proxy.service.ts validateUrlSecurity server-side request forgery

https://vuldb.com/?id.352316

Signature, Permissions Required signature permissions-required

VDB-352316 | CTI Indicators (IOB, IOC, IOA)

https://vuldb.com/?ctiid.352316

Third Party Advisory third-party-advisory

Submit #784197 | trueleaf apiflow ≤0.9.7 Server-Side Request Forgery

https://vuldb.com/?submit.784197

Exploit exploit

https://www.notion.so/Server-Side-Request-Forgery-SSRF-in-ApiFlow-329ea92a3c4180489df2fa2702078fe5

Scores

CVSS v3 7.3

EPSS 0.0030

EPSS Percentile 21.5%

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