CVE-2026-58138

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-30. The CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Elevated

Also known asEUVD-2026-40377 (ENISA EUVD) · GHSA-7x5q-8f6h-rjrc (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 9.1%CVSS: 9.8Exploit: Public PoCExposed services: Not assessed

A fix is available — apply it.

Orkes Conductor 3.21.21 before 3.30.2 contains an unauthenticated remote code execution vulnerability that allows remote attackers to execute arbitrary OS commands by submitting inline workflow definitions containing malicious JavaScript or Python expressions to the workflow API endpoint prior to authentication. Attackers can exploit unsandboxed GraalVM evaluators configured with HostAccess.ALL or allowAllAccess(true) through INLINE, LAMBDA, DO_WHILE, and SWITCH task types to invoke arbitrary system commands via Java reflection or direct subprocess calls.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

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)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 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.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
9.1%
EPSS %ILE
95th
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 (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
9.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). 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; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.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; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

June 30, 2026

Last Modified

November 8, 2026

Advisory Details (5)

Auto-updated Nov 8, 2026
Patch available. Sources: github_commit, github_release.
Web page

Orkes Conductor 3.21.21 < 3.30.2 Unauthenticated RCE via GraalVM Script Evaluators | Advisories | VulnCheck

https://www.vulncheck.com/advisories/orkes-conductor-unauthenticated-rce-via-graalvm-script-evaluators
Web page
https://www.cve.org/CVERecord?id=CVE-2025-26074
GitHub commit Patch Available

commit c691e35e768c (conductor-oss/conductor)

Patch available: conductor-oss/conductor v3.30.2 (contains commit c691e35e768c)

https://github.com/conductor-oss/conductor/commit/c691e35e768caeb802c9f06ecdd9674c80081af1
GitHub commit Patch Available

commit 87a7d96aabbb (conductor-oss/conductor)

Patch available: conductor-oss/conductor v3.30.0 (contains commit 87a7d96aabbb)

https://github.com/conductor-oss/conductor/commit/87a7d96aabbb706d6e84f812b93da5165028d18f
GitHub release Patch Available

v3.30.2

Patch available: conductor-oss/conductor v3.30.2

https://github.com/conductor-oss/conductor/releases/tag/v3.30.2

Vendor Advisories for CVE-2026-58138(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 16× in last 7d / 63× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 518 rows 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 418 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 12:21 UTCEchelonGraph re-scored
  2. 2026-11-13 12:21 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-11-12 16:34 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  4. 2026-11-12 13:09 UTCEchelonGraph re-scored
  5. 2026-11-12 13:09 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-11-11 16:40 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  7. 2026-11-11 13:57 UTCEchelonGraph re-scored
  8. 2026-11-11 13:57 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-11-10 16:44 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  10. 2026-11-10 14:47 UTCEchelonGraph re-scored
  11. 2026-11-10 14:47 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-11-09 16:35 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  13. 2026-11-09 15:36 UTCEchelonGraph re-scored
  14. 2026-11-09 15:36 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-11-08 16:40 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  16. 2026-11-08 16:26 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-11-08 14:16 UTCEchelonGraph re-scored
  18. 2026-11-08 14:16 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-11-08 08:12 UTCEchelonGraph re-scored
  20. 2026-11-08 08:12 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-11-07 16:39 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  22. 2026-11-07 09:01 UTCEchelonGraph re-scored
  23. 2026-11-07 09:01 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-11-06 16:38 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  25. 2026-11-06 12:55 UTCOSV refresh
Show 75 more
  1. 2026-11-06 09:51 UTCEchelonGraph re-scored
  2. 2026-11-06 09:51 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-11-05 16:38 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  4. 2026-11-05 10:41 UTCEchelonGraph re-scored
  5. 2026-11-05 10:41 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-11-04 16:36 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  7. 2026-11-04 11:30 UTCEchelonGraph re-scored
  8. 2026-11-04 11:30 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-11-03 16:48 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  10. 2026-11-03 12:19 UTCEchelonGraph re-scored
  11. 2026-11-03 12:19 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-11-02 13:09 UTCEchelonGraph re-scored
  13. 2026-11-02 13:09 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-11-01 16:35 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  15. 2026-11-01 13:56 UTCEchelonGraph re-scored
  16. 2026-11-01 13:56 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-31 16:33 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  18. 2026-10-31 14:45 UTCEchelonGraph re-scored
  19. 2026-10-31 14:45 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-30 16:34 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  21. 2026-10-30 15:35 UTCEchelonGraph re-scored
  22. 2026-10-30 15:35 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-10-29 16:33 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  24. 2026-10-29 16:25 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-10-29 11:21 UTCEchelonGraph re-scored
  26. 2026-10-29 11:21 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  27. 2026-10-28 16:32 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  28. 2026-10-28 12:11 UTCEchelonGraph re-scored
  29. 2026-10-28 12:11 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  30. 2026-10-27 16:32 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  31. 2026-10-27 13:00 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  32. 2026-10-27 00:13 UTCEchelonGraph re-scored
  33. 2026-10-27 00:12 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  34. 2026-10-26 16:31 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  35. 2026-10-25 21:26 UTCEchelonGraph re-scored
  36. 2026-10-25 21:26 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  37. 2026-10-25 16:33 UTCEPSS rescoreEPSS 9.1% · 95th percentile
  38. 2026-10-25 14:17 UTCEchelonGraph re-scored
  39. 2026-10-25 03:22 UTCEchelonGraph re-scored
  40. 2026-10-25 03:22 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-10-24 16:33 UTCEPSS rescoreEPSS 15% · 96th percentile
  42. 2026-10-24 04:11 UTCEchelonGraph re-scored
  43. 2026-10-24 04:11 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  44. 2026-10-23 16:32 UTCEPSS rescoreEPSS 15% · 96th percentile
  45. 2026-10-23 04:59 UTCEchelonGraph re-scored
  46. 2026-10-23 04:59 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  47. 2026-10-22 16:34 UTCEPSS rescoreEPSS 15% · 96th percentile
  48. 2026-10-22 05:48 UTCEchelonGraph re-scored
  49. 2026-10-22 05:48 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  50. 2026-10-21 16:33 UTCEPSS rescoreEPSS 15% · 96th percentile
  51. 2026-10-21 06:35 UTCEchelonGraph re-scored
  52. 2026-10-21 06:35 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  53. 2026-10-20 16:33 UTCEPSS rescoreEPSS 15% · 96th percentile
  54. 2026-10-20 07:23 UTCEchelonGraph re-scored
  55. 2026-10-20 07:23 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  56. 2026-10-19 16:32 UTCEPSS rescoreEPSS 15% · 96th percentile
  57. 2026-10-19 08:11 UTCEchelonGraph re-scored
  58. 2026-10-19 08:10 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  59. 2026-10-18 08:55 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  60. 2026-10-18 03:28 UTCEchelonGraph re-scored
  61. 2026-10-17 16:35 UTCEPSS rescoreEPSS 15% · 96th percentile
  62. 2026-10-17 06:38 UTCEchelonGraph re-scored
  63. 2026-10-17 06:38 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  64. 2026-10-16 16:43 UTCEPSS rescoreEPSS 15% · 96th percentile
  65. 2026-10-16 07:20 UTCEchelonGraph re-scored
  66. 2026-10-16 07:20 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  67. 2026-10-15 16:32 UTCEPSS rescoreEPSS 15% · 96th percentile
  68. 2026-10-15 06:15 UTCEchelonGraph re-scored
  69. 2026-10-15 06:14 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  70. 2026-10-14 16:33 UTCEPSS rescoreEPSS 15% · 96th percentile
  71. 2026-10-14 01:53 UTCEchelonGraph re-scored
  72. 2026-10-14 01:52 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8
  73. 2026-10-13 16:34 UTCEPSS rescoreEPSS 15% · 96th percentile
  74. 2026-10-12 22:07 UTCEchelonGraph re-scored
  75. 2026-10-12 22:07 UTCGHSA enrichmentGHSA-7x5q-8f6h-rjrc · GitHub severity CRITICAL · GitHub CVSS 9.8

Publicly available exploits

(6 references)

Public exploit code is referenced for this CVE (1 Exploit-DB entry, 4 GitHub PoCs), as is 1 Nuclei detection template. A detection template checks whether a system is affected; it is not necessarily exploit code. Defenders should treat patch urgency accordingly.

  • GitHub PoC0xBlackash/CVE-2026-58138
    Published Sep 5, 2026

    CVE-2026-58138

    Open source ↗
  • GitHub PoC0xredash/CVE-2026-58138
    Published Sep 5, 2026

    CVE-2026-58138

    Open source ↗
  • GitHub PoCashrafzaryouh/CVE-2026-58138
    Published Sep 5, 2026

    CVE-2026-58138

    Open source ↗
  • Nucleihttp/cves/2026/CVE-2026-58138.yaml
    Published Aug 13, 2026

    Orkes Conductor 3.21.21-3.30.1 - Remote Code Execution

    Open source ↗
  • Exploit-DBEDB-52633
    Published Aug 10, 2026

    OrkesConductor 3.30.2 - Unauthenticated Remote Code Execution

    Open source ↗
  • GitHub PoCCh4120N/CVE-2026-58138
    Published Jul 15, 2026

    CVE-2026-58138 — Conductor (3.21.21..<3.30.2) unauthenticated RCE via INLINE GraalVM evaluator (HostAccess.ALL). Lab + PoC, verified e2e (root).

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-58138?
CVE-2026-58138 is a critical-severity vulnerability; its CVE record was published on June 30, 2026. Orkes Conductor 3.21.21 before 3.30.2 contains an unauthenticated remote code execution vulnerability that allows remote attackers to execute arbitrary OS commands by submitting inline workflow definitions containing malicious JavaScript or Python expressions to the workflow API endpoint prior to…
When was CVE-2026-58138 made public?
CVE-2026-58138 was made public on May 5, 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 June 30, 2026. EchelonGraph's copy of the record carries a last-modified date of November 8, 2026; the record at its source may have been updated since.
Is CVE-2026-58138 actively exploited?
CVE-2026-58138 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.1% probability of exploitation in the next 30 days (95th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-58138?
CVE-2026-58138 has a CVSS base score of 9.8 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-58138?
A fix for CVE-2026-58138 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-58138 are linked in the Vendor Advisories panel on this page.

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