CVE-2026-4528

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

HIGH
7.3
CVSS Score
Published: March 21, 2026 at 10:02 PM UTC
Updated: June 17, 2026 at 10:56 AM UTC
1 product affected across 1 vendorApiFlow

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Severity
HIGH7.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/?id.352316
SignaturePermissions Required
Source: cverecord
https://vuldb.com/?ctiid.352316
Third Party Advisory
Source: cverecord
https://vuldb.com/?submit.784197

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-918

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