🛡️ CVE-2026-42294 on Go (Root.io) — argo-workflows

🟠 CVSS 8.0 — High ✅ No Known Exploit OSV

8.0

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

CVE-2026-42294 in rootio-github.com/argoproj/argo-workflows/v3 - Patched by Root

Root has patched CVE-2026-42294 in the rootio-github.com/argoproj/argo-workflows/v3 package for Root:Go. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2026-42294 as tracked by Go (Root.io), for the package argo-workflows. The fix is available in version v3.6.0-aikido.2; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high. (rating taken from the base CVE record.)

Weakness class

ROOT-APP-GOBINARY-CVE-2026-42294 is classified as CWE-770: Allocation of Resources Without Limits. Resources are allocated on request with no cap, so a client can exhaust them.

Affected software

ROOT-APP-GOBINARY-CVE-2026-42294 is recorded against 2 packages.

github.com/argoproj/argo-workflows/v3 (fixed in v3.6.0-aikido.2)
rootio-github.com/argoproj/argo-workflows/v3 (fixed in v3.6.0-root.io.2)

Timeline and source

Published on 18 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

CVE-2026-42294 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Base record

Details

Severity HIGH

CVSS Score 8.0

CVSS Vector N/A

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2026-06-18

Updated 2026-08-12

Modified 2026-06-18

Fix URL N/A

Affected Packages

Software	From version	Fixed in
github.com/argoproj/argo-workflows/v3	—	v3.6.0-aikido.2
rootio-github.com/argoproj/argo-workflows/v3	—	v3.6.0-root.io.2

References

N/A

🔗 NVD 🔗 Mitre

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