CVE-2026-42294: falha de alta gravidade em argoproj argo-workflows
Argo Workflows: Unauthenticated Memory Exhaustion (DoS) in Webhook Interceptor
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.2epss 0.6%
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Produtos afetados
argoproj · argo-workflowsCVEs relacionadas — argoproj argo-workflows
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Referências
https://access.redhat.com/security/cve/CVE-2026-42294https://bugzilla.redhat.com/show_bug.cgi?id=2468443https://github.com/argoproj/argo-workflows/commit/7abb4de6c3599e2d5d960ba4d5de4cf1df109965https://github.com/argoproj/argo-workflows/releases/tag/v3.7.14https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5https://github.com/argoproj/argo-workflows/security/advisories/GHSA-jcc8-g2q4-9fxqhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42294.json