What’s Vulnerable › Vulnerabilities

CVE-2026-4528: trueleaf ApiFlow URL Validation http_proxy.service.ts validateUrlSecurity server-side request forgery

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-21 · updated 2026-06-17
• Weakness: CWE-918

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 products

• trueleaf ApiFlow: 0.9.7

References

• https://vuldb.com/?ctiid.352316
• https://vuldb.com/?id.352316
• https://vuldb.com/?submit.784197
• https://www.notion.so/Server-Side-Request-Forgery-SSRF-in-ApiFlow-329ea92a3c4180489df2fa2702078fe5

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