CVE-2026-31892

HIGHNVD 8.18.1
EchelonGraph scoreLOW confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: nvd
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

A fix is available — apply it.

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From 2.9.0 to before 4.0.2 and 3.7.11, A user who can submit Workflows can completely bypass all security settings defined in a WorkflowTemplate by including a podSpecPatch field in their Workflow submission. This works even when the controller is configured with templateReferencing: Strict, which is specifically documented as a mechanism to restrict users to admin-approved templates. The podSpecPatch field on a submitted Workflow takes precedence over the referenced WorkflowTemplate during spec merging and is applied directly to the pod spec at creation time with no security validation. This vulnerability is fixed in 4.0.2 and 3.7.11.

CVSS v3
8.1
EG Score
8.1(low)
EPSS
33.2%
KEV
Not listed

Published

March 11, 2026

Last Modified

June 30, 2026

Advisory Details (5)

Auto-updated Jun 30, 2026
🔬 Proof of concept available. Patch available. Sources: github, redhat.
redhat Patch Available
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31892.json
redhat

2446551 – (CVE-2026-31892) CVE-2026-31892 github.com/argoproj/argo-workflows: Argo Workflows: Security bypass allows privilege escalation via podSpecPatch field

https://bugzilla.redhat.com/show_bug.cgi?id=2446551
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-31892
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:10184
github Patch Available🟡 PoC Available

WorkflowTemplate Security Bypass via podSpecPatch in Strict/Secure Reference Mode · Advisory · argoproj/argo-workflows · GitHub

https://github.com/argoproj/argo-workflows/security/advisories/GHSA-3wf5-g532-rcrr

Vendor Advisories for CVE-2026-31892(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhoai/odh-ml-pipelines-scheduledworkflow-v2-rhel9:17767403662026-04-23redhat

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

(4 across 1 ecosystem)
Go(4)
PackageVulnerable rangeFixed inDependents
github.com/argoproj/argo-workflows———
github.com/argoproj/argo-workflows/v2———
github.com/argoproj/argo-workflows/v3—3.7.11—
github.com/argoproj/argo-workflows/v4—4.0.2—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 11× 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. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 02:23 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-04 06:31 UTCEPSS rescore
  7. 2026-07-01 15:06 UTCEPSS rescore
  8. 2026-06-30 23:22 UTCEPSS rescore
  9. 2026-06-30 04:34 UTCEG score recompute
  10. 2026-06-30 04:34 UTCVendor advisory
  11. 2026-06-30 04:31 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-31892?
CVE-2026-31892 is a high vulnerability published on March 11, 2026. Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From 2.9.0 to before 4.0.2 and 3.7.11, A user who can submit Workflows can completely bypass all security settings defined in a WorkflowTemplate by including a podSpecPatch field in…
When was CVE-2026-31892 disclosed?
CVE-2026-31892 was first published in the National Vulnerability Database on March 11, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-31892 actively exploited?
CVE-2026-31892 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-31892?
CVE-2026-31892 has a CVSS v3 base score of 8.1 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-31892?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31892, 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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