data/osv/GO-2026-5989.json

{
  "schema_version": "1.3.1",
  "id": "GO-2026-5989",
  "modified": "0001-01-01T00:00:00Z",
  "published": "0001-01-01T00:00:00Z",
  "aliases": [
    "CVE-2026-55512",
    "GHSA-m3cx-mwpg-32jg"
  ],
  "summary": "Unauthenticated OIDC login in nebula-mesh allows unbounded memory allocation in github.com/forgekeep/nebula-mesh",
  "details": "When OIDC is enabled, the login endpoint is reachable without authentication and is registered outside the rate-limited auth routes. Every request creates a fresh random OIDC state value and stores it in an in-memory map.\n\nAn unauthenticated remote client can grow the state storage, bounded by request throughput rather than by configured auth rate limits, potentially leading to a denial of service.",
  "affected": [
    {
      "package": {
        "name": "github.com/forgekeep/nebula-mesh",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0.4.0"
            },
            {
              "fixed": "0.5.0"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "github.com/forgekeep/nebula-mesh/internal/web",
            "symbols": [
              "OIDC.HandleLogin",
              "OIDC.rememberState",
              "Web.ServeHTTP",
              "Web.WithOIDC"
            ]
          }
        ]
      }
    },
    {
      "package": {
        "name": "github.com/juev/nebula-mesh",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0.2.0"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "github.com/juev/nebula-mesh/internal/web",
            "symbols": [
              "OIDC.HandleLogin",
              "OIDC.rememberState",
              "Web.ServeHTTP",
              "Web.WithOIDC"
            ]
          }
        ]
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-m3cx-mwpg-32jg"
    },
    {
      "type": "FIX",
      "url": "https://github.com/forgekeep/nebula-mesh/commit/bc387086cc0e4b9c1654468b7391af19cacfe367"
    },
    {
      "type": "WEB",
      "url": "https://github.com/forgekeep/nebula-mesh/releases/tag/v0.5.0"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2026-5989",
    "review_status": "REVIEWED"
  }
}