Medium severity5.0NVD Advisory· Published Sep 27, 2026

CVE-2026-100861

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.

Affected products

Heymrun/Heymllm-fuzzy
Range: <0.0.105

Patches

Vulnerability mechanics

References

github.com/heymrun/heym/security/advisories/GHSA-xchj-mw74-2232nvd
www.vulncheck.com/advisories/heym-before-0.0.105-ssrf-via-credential-controlled-base-urlsnvd

News mentions

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cvss	0.325
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000