{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/open-feature/flagd/core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.13.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/open-feature/flagd/flagd-proxy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.8.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/open-feature/flagd/flagd"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.13.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-362",
      "CWE-400",
      "CWE-407",
      "CWE-444",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-05T15:07:05Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Summary\nIn 2025, several vulnerabilities in the Go Standard Library were disclosed, impacting Go-based applications like flagd (the evaluation engine for OpenFeature). These CVEs primarily focus on Denial of Service (DoS) through resource exhaustion and Race Conditions in database handling. \n\n| CVE ID | Impacted Package | Severity | Description \u0026 Impact on flagd |\n| -- | -- | -- | -- |\n| CVE-2025-47907 | database/sql | 7.0 (High) | Race Condition:  Canceling a query during a Scan call can return data from the wrong query. Critical if flagd uses SQL-based sync providers (e.g., Postgres), potentially leading to incorrect flag configurations. |\n| CVE-2025-61725 | net/mail | 7.5 (High) | DoS: Inefficient complexity in ParseAddress.  Attackers can provide crafted email strings with large domain literals to exhaust CPU if flagd parses email-formatted metadata. |\n| CVE-2025-61723 | encoding/pem | 7.5 (High) | DoS: Quadratic complexity when parsing invalid PEM inputs. Relevant if flagd loads TLS certificates or keys via PEM files from untrusted sources. |\n| CVE-2025-61729 | crypto/x509 | 7.5 (High) | Resource Exhaustion: HostnameError.Error() lacks string concatenation limits. A malicious TLS certificate with thousands of hostnames could crash flagd during connection handshakes. |\n| CVE-2025-58188 | net/http | Medium | Request Smuggling: Improper header handling in HTTP/1.1. Could allow attackers to bypass security filters positioned in front of flagd sync or evaluation APIs. |\n| CVE-2025-58187 | archive/zip | Medium | DoS:  Improper validation of malformed ZIP archives.  Impacts flagd if configured to fetch and unpack zipped configuration bundles from remote providers. |",
  "id": "GHSA-4c5f-9mj4-m247",
  "modified": "2026-01-05T15:07:46Z",
  "published": "2026-01-05T15:07:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/open-feature/flagd/security/advisories/GHSA-4c5f-9mj4-m247"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-feature/flagd/pull/1840"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/open-feature/flagd"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-feature/flagd/releases/tag/core%2Fv0.13.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "flagd: Multiple Go Runtime CVEs Impact Security and Availability"
}