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TI-2026-64998 Aliases CVE-2026-100860GHSA-v44j-74xg-9j2q

heym before 0.0.105 Authentication Bypass via Redis Node

Priority MEDIUM 63CWE-636Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

heym before 0.0.105 does not act on the result of the credential authorization lookup in the Redis workflow node (backend/app/services/node_execution/nodes/redis_node.py). When _get_accessible_credential returns None — because the credential ID does not exist or the caller is not authorized to use it — the node treats the lookup failure as an empty configuration and falls back to defaults, connecting to localhost:6379 with no password and executing the requested operation there. The same fallback occurs when an accessible credential has an empty config or no redis_host value. An authenticated workflow author who supplies a credential ID they do not own, or one that was deleted, therefore obtains a read/write connection to whatever Redis is listening on the backend's loopback interface instead of an error. Impact depends on the deployment: the stock docker-compose.yml ships no Redis, in which case the flaw surfaces as a misleading connection error rather than data exposure.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00226 13th percentileScored 2026-11-07
Fix Fixed heym (heymrun): 0.0.105

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
heymrunheymbefore 0.0.1050.0.105Patch availableCNA
  • heym Vendorheymrun Affected before 0.0.105 Fixed in 0.0.105 Patch available CNA

Remediation

  • Fix · CNA heym (heymrun) Fixed in 0.0.105

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    heymrun heym 0.0.105

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-64999 heym before 0.0.105 SSRF via credential-controlled base URLsPriority MEDIUM 57
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-100860
  2. 2026-10-03 Alias added: GHSA-v44j-74xg-9j2q

References

Advisory 1

  • TI-2026-71768 Sandbox escape in heym Python tool allows command execution CVSS 3.1HIGH 8.8
  • TI-2026-65003 Heym before 0.0.53 Remote Code Execution via eval() Sandbox Escape CVSS 4.0HIGH 8.7
  • TI-2026-65002 heym before 0.0.91 Remote Code Execution via Expression Engine CVSS 4.0HIGH 8.7
  • TI-2026-33042 Heym < 0.0.21 Sandbox Escape via Python Introspection CVSS 4.0HIGH 8.7
  • TI-2026-65083 Heym before 0.0.53 Authentication Bypass via Telegram Webhook CVSS 4.0HIGH 8.3
  • TI-2026-65082 Heym before 0.0.53 Slack Webhook Signature Verification Bypass CVSS 4.0HIGH 8.3
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences