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CVE-2025-62379
Open Redirect in reflex (CVE-2025-62379)
Summary
vulnerability in reflex (CVE-2025-62379). Risk of unauthorized operations or information disclosure. Exploitable via ``GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN``.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-62379** has been found in reflex.
Attackers can target a specific entry point like ``GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN`` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "reflex CVE-2025-62379" on the vendor's site.
CVE-2025-62379 (reflex) — CWE-601 /
Attack vector: remote (network-reachable) / unauthenticated
Attack surface: `GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN`
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (CWE-601) exists in reflex. Attackers reach the vulnerable code path via ``GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN`` without authentication.
📍 Affected scope
reflex — . Attack surface: `GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'reflex' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'reflex' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `reflex` を grep し、稼働しているサービス・バージョンを把握する。
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7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
PyPI
reflex
[{"type":"ECOSYSTEM","events":[{"introduced":"0.5.4"},{"last_affected":"0.8.14"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2025-62379
- advisory https://github.com/advisories/GHSA-rfh5-c9h5-q8jm
- package https://github.com/reflex-dev/reflex
- package https://pypi.org/project/reflex
- web https://github.com/reflex-dev/reflex/security/advisories/GHSA-rfh5-c9h5-q8jm
- web https://github.com/reflex-dev/reflex/commit/ade12549f3c0ddab3d7382c581bc04a3c1f989ec
- web https://file.notion.so/f/f/d105d145-04bc-45c5-b46c-ed880895e9de/a86c3e3b-f67f-45d1-8fa2-4aa0ba7d0068/poc.mp4?table=block&id=26955717-5d2e-805a-b53c-e25ee03f1d4b&spaceId=d105d145-04bc-45c5-b46c-ed880895e9de&expirationTimestamp=1760508000000&signature=ZPp8PVldfGOh0gB5tVElRV6GN789R-EG0oxZgkFjjLU&downloadName=poc.mp4
- web https://github.com/reflex-dev/reflex/blob/51f9f2c2f52cac4d66c07683a12bc0237311b6be/reflex/utils/codespaces.py#L18-L46