CVE-2026-5602

MEDIUMNVD 5.35.3
EchelonGraph scoreMEDIUM confidence

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

Score 5.3 from GitHub Security Advisory (severity: LOW) published 2026-04-06. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-19134 (ENISA EUVD) · GHSA-wx4p-jr66-jfp9 (GitHub Security Advisories)Source: ENISA EUVD

5.3EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (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: 0.9%CVSS: 5.3Exploit: No code on recordExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

A vulnerability was determined in Nor2-io heim-mcp up to 0.1.3. Impacted is the function registerTools of the file src/tools.ts of the component new_heim_application/deploy_heim_application/deploy_heim_application_to_cloud. This manipulation causes os command injection. The attack requires local access. The exploit has been publicly disclosed and may be utilized. Patch name: c321d8af25f77668781e6ccb43a1336f9185df37. It is suggested to install a patch to address this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
40
EG Risk 40/100

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)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 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: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.9%
EPSS %ILE
59th
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 (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.9% within 30 daysSource: FIRST EPSS. 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.Each input and its source: 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).

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

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.

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

April 5, 2026

Last Modified

July 24, 2026

Advisory Details (5)

Auto-updated Jul 26, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit, github_pr.
GitHub pull request

fix: prevent command injection by replacing child_process.exec with e…

Fix merged in Nor2-io/heim-mcp PR #2 on 2026-03-23 — awaiting tagged release

https://github.com/Nor2-io/heim-mcp/pull/2
Web page

Security Vulnerability: Command Injection in multiple heim-mcp tools due to unsafe use of child_process.exec · Issue #1 · Nor2-io/heim-mcp · GitHub

https://github.com/Nor2-io/heim-mcp/issues/1
GitHub commit

commit c321d8af25f7 (Nor2-io/heim-mcp)

Fix landed in Nor2-io/heim-mcp commit c321d8af25f7 — awaiting tagged release

https://github.com/Nor2-io/heim-mcp/commit/c321d8af25f77668781e6ccb43a1336f9185df37
Web page

GitHub - Nor2-io/heim-mcp: Heim MCP Server · GitHub

https://github.com/Nor2-io/heim-mcp/

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
npm@nor2/heim-mcp—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
@nor2/heim-mcp—
  • every version through 0.1.3: no fix on record
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 39× 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.

Showing the most recent 100 of 221 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 121 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  2. 2026-10-30 10:55 UTCOSV refresh
  3. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  4. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  5. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  6. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  7. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  8. 2026-10-25 14:18 UTCEG score recompute
  9. 2026-10-24 16:33 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  10. 2026-10-23 16:32 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  11. 2026-10-22 21:12 UTCEG score recompute
  12. 2026-10-22 21:12 UTCGHSA enrichmentGHSA-wx4p-jr66-jfp9 · GitHub severity LOW · GitHub CVSS 5.3
  13. 2026-10-22 16:34 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  14. 2026-10-21 16:33 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  15. 2026-10-20 16:33 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  16. 2026-10-19 16:32 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  17. 2026-10-18 16:32 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  18. 2026-10-18 03:29 UTCEG score recompute
  19. 2026-10-17 16:35 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  20. 2026-10-16 16:43 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  21. 2026-10-15 16:32 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  22. 2026-10-14 16:33 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  23. 2026-10-13 16:34 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  24. 2026-10-12 16:34 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  25. 2026-10-12 15:55 UTCEG score recompute
Show 75 more
  1. 2026-10-11 19:38 UTCEG score recompute
  2. 2026-10-11 16:53 UTCEG score recompute
  3. 2026-10-11 14:16 UTCEG score recompute
  4. 2026-10-11 13:49 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  7. 2026-10-08 17:13 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  9. 2026-10-06 15:18 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  12. 2026-10-03 14:26 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  13. 2026-10-02 17:56 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  14. 2026-10-01 19:50 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  15. 2026-09-30 15:03 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  16. 2026-09-28 13:51 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  17. 2026-09-26 15:59 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  18. 2026-09-24 14:04 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  19. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  20. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  21. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  22. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  23. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  24. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  25. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  26. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  27. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  28. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  29. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  30. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  31. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  32. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  33. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  34. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  35. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  36. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  37. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  38. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  39. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  40. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  41. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  42. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  43. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  44. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  45. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  46. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  47. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  48. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  49. 2026-08-16 08:27 UTCEG score recompute
  50. 2026-08-16 08:27 UTCGHSA enrichmentGHSA-wx4p-jr66-jfp9 · GitHub severity LOW · GitHub CVSS 5.3
  51. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  52. 2026-08-14 05:36 UTCEG score recompute
  53. 2026-08-14 05:36 UTCGHSA enrichmentGHSA-wx4p-jr66-jfp9 · GitHub severity LOW · GitHub CVSS 5.3
  54. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  55. 2026-08-12 23:03 UTCEG score recompute
  56. 2026-08-12 23:03 UTCGHSA enrichmentGHSA-wx4p-jr66-jfp9 · GitHub severity LOW · GitHub CVSS 5.3
  57. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  58. 2026-08-12 01:12 UTCEG score recompute
  59. 2026-08-12 01:11 UTCGHSA enrichmentGHSA-wx4p-jr66-jfp9 · GitHub severity LOW · GitHub CVSS 5.3
  60. 2026-08-11 03:20 UTCEG score recompute
  61. 2026-08-11 03:20 UTCGHSA enrichmentGHSA-wx4p-jr66-jfp9 · GitHub severity LOW · GitHub CVSS 5.3
  62. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  63. 2026-08-10 03:00 UTCEG score recompute
  64. 2026-08-10 03:00 UTCGHSA enrichmentGHSA-wx4p-jr66-jfp9 · GitHub severity LOW · GitHub CVSS 5.3
  65. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  66. 2026-08-09 05:06 UTCEG score recompute
  67. 2026-08-09 05:06 UTCGHSA enrichmentGHSA-wx4p-jr66-jfp9 · GitHub severity LOW · GitHub CVSS 5.3
  68. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  69. 2026-08-07 15:12 UTCEG score recompute
  70. 2026-08-07 15:12 UTCGHSA enrichmentGHSA-wx4p-jr66-jfp9 · GitHub severity LOW · GitHub CVSS 5.3
  71. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  72. 2026-08-06 00:10 UTCEG score recompute
  73. 2026-08-06 00:10 UTCGHSA enrichmentGHSA-wx4p-jr66-jfp9 · GitHub severity LOW · GitHub CVSS 5.3
  74. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  75. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.8% · 53rd percentile

Frequently asked(5)

What is CVE-2026-5602?
CVE-2026-5602 is a medium-severity vulnerability; its CVE record was published on April 5, 2026. A vulnerability was determined in Nor2-io heim-mcp up to 0.1.3. Impacted is the function registerTools of the file src/tools.ts of the component newheimapplication/deployheimapplication/deployheimapplicationtocloud. This manipulation causes os command injection. The attack requires local access.…
When was the CVE record for CVE-2026-5602 published?
The CVE record for CVE-2026-5602 was published on April 5, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 24, 2026; the record at its source may have been updated since.
Is CVE-2026-5602 actively exploited?
CVE-2026-5602 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (59th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-5602?
CVE-2026-5602 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-5602?
An upstream fix for CVE-2026-5602 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-5602

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