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github.com/StacklokLabs/mkp

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 7.5GoPublished

    MKP: Unbounded Pod Log Read via Attacker-Controlled limitBytes/tailLines Causes Memory Exhaustion

    CVE-2026-50125 · GHSA-qw5r-ppcg-f8rj

    Affected
    • Go github.com/StacklokLabs/mkp < 0.4.1
    Fixed in
    0.4.1· Vendor fix available
    Issue
    Unbounded Pod Log Read via Attacker-Controlled limitBytes/tailLines Causes Memory Exhaustion Summary The MKP (Model Context Protocol for Kubernetes) server exposes a getresource MCP tool that proxies Kubernetes pod log requests. User-supplied limitBytes and tailLines parameters are parsed as unbounded int64 values and forwarded directly to the Kubernetes API. The server then reads the entire returned log stream into an in-memory bytes.Buffer using io.Copy without any application-side size cap. A remote unauthenticated attacker can exploit this to exhaust the MKP server's memory by sending a single crafted tools/call request, leading to process termination (OOM kill) and denial of service. Dynamic reproduction confirmed the MKP process RSS grew from 25.8 MB to 1,179.3 MB (+1,153.4 MB) while handling one request with limitBytes=134217728. Details The vulnerability exists in pkg/k8s/subresource.go in the buildPodLogOpts() and defaultGetPodLogs() functions. Source — unbounded parameter…

    Recommended action: Upgrade to 0.4.1 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →