ChangeIntel IT change radar

Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-100859

Heym before 0.0.106 Credential Exfiltration via URL Override

CVSS 4.0 7.1 HIGHCVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-100859

Published

Heym before 0.0.106 contains a credential exfiltration vulnerability in the POST /api/credentials/test endpoint that allows collaborators with shared credential access to exfiltrate the credential owner's secret. Attackers can override the destination URL in the config parameter to cause the server to send decrypted authentication secrets to attacker-controlled endpoints.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-100859

Published

heym

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "heymrun",
                    "product": "heym",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "0.0.106"
                        },
                        {
                            "version": "0.0.106",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON