CVE-2026-18621

HIGHPre-NVD 7.67.6—
EchelonGraph scoreHIGH confidence

Score 7.6 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. a secondary CVSS source baseline 7.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.6Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in Data Science Pipelines (DSP). An attacker with namespace editor privileges can bypass security hardening by submitting a malicious Argo Workflow through the V1 API path. This allows the API server to create pods with elevated privileges, acting as a 'confused deputy' on behalf of the attacker. Successful exploitation grants the attacker node-root access, enabling arbitrary code execution and full control over the underlying node.

CVSS v3
7.6
EG Score
7.6(high)
EG Risk
34(Track)
EG Risk 34/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity76% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 19, 2026

Advisory Details (2)

Auto-updated Aug 10, 2026
Patch available. Sources: redhat.
redhat

2510327 – (CVE-2026-18621) CVE-2026-18621 data-sciences-pipeline: DSP: V1 Argo template path accepts arbitrary Workflow spec, bypassing all v2 security hardening

https://bugzilla.redhat.com/show_bug.cgi?id=2510327
redhat Patch Available

CVE-2026-18621 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-18621

Vendor Advisories for CVE-2026-18621(4)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhoai/odh-ml-pipelines-api-server-v2-rhel9:17851879202026-08-11redhat
redhatrhoai/odh-ml-pipelines-api-server-v2-rhel9:17851899342026-08-11redhat
redhatrhoai/odh-ml-pipelines-api-server-v2-rhel9:17849249512026-08-11redhat

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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 50× in last 7d / 83× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-08-21 06:34 UTCEG score recompute
  2. 2026-08-21 06:34 UTCVendor advisory
  3. 2026-08-21 06:34 UTCGHSA enrichment
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-20 19:01 UTCVendor advisory
  6. 2026-08-20 19:01 UTCGHSA enrichment
  7. 2026-08-20 07:28 UTCVendor advisory
  8. 2026-08-20 07:28 UTCGHSA enrichment
  9. 2026-08-19 19:55 UTCEG score recompute
  10. 2026-08-19 19:55 UTCVendor advisory
  11. 2026-08-19 19:55 UTCGHSA enrichment
  12. 2026-08-19 17:03 UTCEPSS rescore
  13. 2026-08-19 08:21 UTCEG score recompute
  14. 2026-08-19 08:21 UTCVendor advisory
  15. 2026-08-19 08:21 UTCGHSA enrichment
  16. 2026-08-19 07:30 UTCEG score recompute
  17. 2026-08-19 07:30 UTCVendor advisory
  18. 2026-08-19 07:29 UTCGHSA enrichment
  19. 2026-08-19 05:07 UTCVendor advisory
  20. 2026-08-19 05:06 UTCGHSA enrichment
  21. 2026-08-18 17:24 UTCEG score recompute
  22. 2026-08-18 17:24 UTCVendor advisory
  23. 2026-08-18 17:24 UTCGHSA enrichment
  24. 2026-08-18 13:48 UTCEPSS rescore
  25. 2026-08-18 04:31 UTCVendor advisory
Show 58 more
  1. 2026-08-18 04:30 UTCGHSA enrichment
  2. 2026-08-17 16:57 UTCEG score recompute
  3. 2026-08-17 16:57 UTCVendor advisory
  4. 2026-08-17 16:57 UTCGHSA enrichment
  5. 2026-08-17 13:47 UTCEPSS rescore
  6. 2026-08-17 05:24 UTCVendor advisory
  7. 2026-08-17 05:24 UTCGHSA enrichment
  8. 2026-08-16 17:38 UTCEG score recompute
  9. 2026-08-16 17:38 UTCVendor advisory
  10. 2026-08-16 17:38 UTCGHSA enrichment
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 05:58 UTCEG score recompute
  13. 2026-08-16 05:58 UTCVendor advisory
  14. 2026-08-16 05:58 UTCGHSA enrichment
  15. 2026-08-16 02:14 UTCEPSS rescore
  16. 2026-08-15 18:26 UTCVendor advisory
  17. 2026-08-15 18:26 UTCGHSA enrichment
  18. 2026-08-15 06:53 UTCEG score recompute
  19. 2026-08-15 06:53 UTCVendor advisory
  20. 2026-08-15 06:53 UTCGHSA enrichment
  21. 2026-08-15 01:30 UTCEPSS rescore
  22. 2026-08-14 19:19 UTCVendor advisory
  23. 2026-08-14 19:19 UTCGHSA enrichment
  24. 2026-08-14 16:44 UTCVendor advisory
  25. 2026-08-14 16:44 UTCGHSA enrichment
  26. 2026-08-14 05:11 UTCEG score recompute
  27. 2026-08-14 05:11 UTCVendor advisory
  28. 2026-08-14 05:11 UTCGHSA enrichment
  29. 2026-08-13 22:00 UTCEPSS rescore
  30. 2026-08-13 17:38 UTCVendor advisory
  31. 2026-08-13 17:38 UTCGHSA enrichment
  32. 2026-08-13 05:57 UTCVendor advisory
  33. 2026-08-13 05:56 UTCGHSA enrichment
  34. 2026-08-12 18:24 UTCEG score recompute
  35. 2026-08-12 18:24 UTCVendor advisory
  36. 2026-08-12 18:24 UTCGHSA enrichment
  37. 2026-08-12 13:50 UTCEPSS rescore
  38. 2026-08-12 06:51 UTCVendor advisory
  39. 2026-08-12 06:51 UTCGHSA enrichment
  40. 2026-08-11 19:19 UTCVendor advisory
  41. 2026-08-11 19:18 UTCGHSA enrichment
  42. 2026-08-11 18:40 UTCEG score recompute
  43. 2026-08-11 18:40 UTCVendor advisory
  44. 2026-08-11 18:40 UTCGHSA enrichment
  45. 2026-08-11 17:45 UTCEG score recompute
  46. 2026-08-11 17:45 UTCVendor advisory
  47. 2026-08-11 17:45 UTCGHSA enrichment
  48. 2026-08-11 16:56 UTCEG score recompute
  49. 2026-08-11 16:56 UTCVendor advisory
  50. 2026-08-11 16:56 UTCGHSA enrichment
  51. 2026-08-11 13:42 UTCEPSS rescore
  52. 2026-08-11 05:23 UTCEG score recompute
  53. 2026-08-11 05:23 UTCGHSA enrichment
  54. 2026-08-11 05:08 UTCEG score recompute
  55. 2026-08-11 05:08 UTCGHSA enrichment
  56. 2026-08-10 21:31 UTCEG score recompute
  57. 2026-08-10 20:55 UTCEG score recompute
  58. 2026-08-10 20:54 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-18621?
CVE-2026-18621 is a high vulnerability published on August 10, 2026. A flaw was found in Data Science Pipelines (DSP). An attacker with namespace editor privileges can bypass security hardening by submitting a malicious Argo Workflow through the V1 API path. This allows the API server to create pods with elevated privileges, acting as a 'confused deputy' on behalf…
When was CVE-2026-18621 disclosed?
CVE-2026-18621 was first published in the National Vulnerability Database on August 10, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18621 actively exploited?
CVE-2026-18621 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 71.8% of all scored CVEs.
What is the CVSS score of CVE-2026-18621?
CVE-2026-18621 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-18621?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18621, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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