CVE-2026-100860

MEDIUMPre-NVD 5.55.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.5 from GitHub Security Advisory published 2026-09-27. A secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-87825 (ENISA EUVD) · GHSA-v44j-74xg-9j2q (GitHub Security Advisories)Source: ENISA EUVD

5.5EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: No code on recordExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (VulnCheck) lists heymrun heym versions before 0.0.105 as affected, and heymrun heym versions 0.0.105 as unaffected. No release containing a fix is confirmed on record.

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.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
41
EG Risk 41/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.
EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-26). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 27, 2026

Last Modified

September 28, 2026

Advisory Details (2)

Auto-updated Sep 27, 2026
No fix on record yet. Sources: github.
Web page

heym before 0.0.105 Authentication Bypass via Redis Node | Advisories | VulnCheck

https://www.vulncheck.com/advisories/heym-before-0.0.105-authentication-bypass-via-redis-node
GitHub advisoryMentions a patch (unverified)

Redis node connects to localhost:6379 when the credential is missing or not accessible · Advisory · heymrun/heym · GitHub

https://github.com/heymrun/heym/security/advisories/GHSA-fmpw-hj3m-xvj6

Vendor Advisories for CVE-2026-100860(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 51× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  5. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-10-27 03:33 UTCEG score recompute
  8. 2026-10-27 03:33 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  9. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-10-25 15:57 UTCEG score recompute
  12. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-10-23 09:52 UTCEG score recompute
  14. 2026-10-23 09:52 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  15. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  17. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  18. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  19. 2026-10-18 05:11 UTCEG score recompute
  20. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  21. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  22. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  23. 2026-10-12 16:41 UTCEG score recompute
  24. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  25. 2026-10-12 00:47 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
Show 48 more
  1. 2026-10-11 20:16 UTCEG score recompute
  2. 2026-10-11 18:28 UTCEG score recompute
  3. 2026-10-11 15:02 UTCEG score recompute
  4. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  5. 2026-10-11 00:39 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  6. 2026-10-10 00:38 UTCEG score recompute
  7. 2026-10-10 00:38 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  8. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-10-09 00:35 UTCEG score recompute
  10. 2026-10-09 00:35 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  11. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  12. 2026-10-08 00:34 UTCEG score recompute
  13. 2026-10-08 00:34 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  14. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  15. 2026-10-07 00:33 UTCEG score recompute
  16. 2026-10-07 00:32 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  17. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  18. 2026-10-06 00:23 UTCEG score recompute
  19. 2026-10-06 00:23 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  20. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  21. 2026-10-05 00:22 UTCEG score recompute
  22. 2026-10-05 00:21 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  23. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  24. 2026-10-04 00:18 UTCEG score recompute
  25. 2026-10-04 00:18 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  26. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  27. 2026-10-03 00:17 UTCEG score recompute
  28. 2026-10-03 00:17 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  29. 2026-10-02 00:16 UTCEG score recompute
  30. 2026-10-02 00:16 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  31. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  32. 2026-10-01 00:15 UTCEG score recompute
  33. 2026-10-01 00:15 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  34. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  35. 2026-09-29 23:47 UTCEG score recompute
  36. 2026-09-29 23:47 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  37. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  38. 2026-09-28 21:13 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  39. 2026-09-28 17:38 UTCEG score recompute
  40. 2026-09-28 17:38 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  41. 2026-09-28 16:34 UTCEG score recompute
  42. 2026-09-28 16:34 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  43. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  44. 2026-09-28 02:37 UTCEG score recompute
  45. 2026-09-28 02:37 UTCGHSA enrichmentGHSA-v44j-74xg-9j2q · GitHub CVSS 5.5
  46. 2026-09-27 02:36 UTCEG score recompute
  47. 2026-09-27 01:52 UTCEG score recomputeFirst assessed: 5.5 MEDIUM
  48. 2026-09-27 01:49 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-100860?
CVE-2026-100860 is a medium-severity vulnerability; its CVE record was published on September 27, 2026. 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…
When was CVE-2026-100860 made public?
CVE-2026-100860 was made public on September 3, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on September 27, 2026. EchelonGraph's copy of the record carries a last-modified date of September 28, 2026; the record at its source may have been updated since.
Is CVE-2026-100860 actively exploited?
CVE-2026-100860 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100860?
CVE-2026-100860 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100860?
No fix for CVE-2026-100860 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (VulnCheck) lists heymrun heym versions before 0.0.105 as affected, and heymrun heym versions 0.0.105 as unaffected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-100860 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-100860

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