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CVE PROGRAM SOURCE RECORD8.3 High

CVE-2026-101049

Heym before 0.0.53 Slack Webhook Signature Verification Bypass

Description

Heym before 0.0.53 fails to verify Slack request signatures when trigger nodes lack credential IDs or have empty signing secrets. Remote unauthenticated attackers can send forged Slack events to known webhook URLs to trigger workflows with the owner's credentials.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

heymrun heym

Default version status: unaffected

  • 0 to < 0.0.53affected
  • 0.0.53unaffected

References