CVE-2026-100861

Medium

Description

heym before 0.0.105 fails to apply egress guards to integration services that use credential-supplied base URLs, allowing authenticated users to bypass SSRF protections. Attackers can configure credentials pointing to loopback, private, or cloud-metadata addresses and read internal service responses returned as workflow node output.

SeverityMedium

CVSS5.0

Exploit probability—

ProductHeym

PublishedSep 27, 2026

First seenSep 27, 2026

Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update

heymrun heym0.0.105 or later

Vendor advisories

github.com/heymrun/heym/security/advisories/GHSA-xchj-mw74-2232

Affected products

Product	Affected versions	Fixed in
heymrun heym	v < 0.0.105	0.0.105

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