CVE detail
CVE-2026-42294
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to versions 3.7.14 and 4.0.5, the Webhook Interceptor loads the entire request body into memory before authenticating the request or verifying its signature. This occurs on the /api/v1/events/ endpoint, which is publicly accessible (albeit intended for webhooks). An attacker can send a request with an extremely large body (e.g., multiple gigabytes), causing the Argo Server to allocate excessive memory, potentially leading to an Out-Of-Memory (OOM) crash and denial of service. This issue has been patched in versions 3.7.14 and 4.0.5.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 20.8 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
7 source links · newest first
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42294.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comMay 9, 2026, 4:16 AM - https://bugzilla.redhat.com/show_bug.cgi?id=2468443bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comMay 9, 2026, 4:16 AM - https://access.redhat.com/security/cve/CVE-2026-42294access.redhat.com
No excerpt available.
Exploitaccess.redhat.comMay 9, 2026, 4:16 AM No excerpt available.
Exploitgithub.comMay 9, 2026, 4:16 AMNo excerpt available.
Exploitgithub.comMay 9, 2026, 4:16 AMNo excerpt available.
Exploitgithub.comMay 9, 2026, 4:16 AM- https://github.com/argoproj/argo-workflows/commit/7abb4de6c3599e2d5d960ba4d5de4cf1df109965github.com
No excerpt available.
Exploitgithub.comMay 9, 2026, 4:16 AM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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