CVE-2026-93991

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 37.5% of scored records. A rank, not a probability.

NVD base score

8.3 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-09-22.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-19 22:58Z1 MO AGO

Last updated

2026-09-21 20:46Z1 MO AGO

Reserved

2026-09-19

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Weaknesses

• CWE-639Authorization Bypass Through User-Controlled KeyBase

Data version

5.2

Document digest

e66697d21f862511443ccc324c9fd2efe8c90e59618ef7d171b40f8e1bbd32ba

• github.comGitHub Security Advisory (GHSA-q65w-j2vp-47c4)https://github.com/argoproj/argo-workflows/security/advisories/GHSA-q65w-j2vp-47c4vendor-advisory
• github.comhttps://github.com/argoproj/argo-workflows/commit/a40972386c097ddf816d2e60e13f058bedca53d9patch
• github.comargo-workflows v4.1.4 Release Noteshttps://github.com/argoproj/argo-workflows/releases/tag/v4.1.4release-notes
• github.comhttps://github.com/argoproj/argo-workflowsproduct
• www.vulncheck.comVulnCheck Advisory: Argo Workflows 4.1.0 through 4.1.3 Cross-Namespace Disclosure via Negated Selectorhttps://www.vulncheck.com/advisories/argo-workflows-4.1.0-through-4.1.3-cross-namespace-disclosure-via-negated-selectorthird-party-advisory