Vulnerability in OpenReplay (CVE-2026-45296)
Summary
Vulnerability in OpenReplay (CVE-2026-45296). Confidential information can be exposed externally. Mitigation: upgrade to 1.26.0 or later.
Original description
The description as published by the source.
OpenReplay is a self-hosted session replay suite. Prior to 1.26.0, OpenReplay's Python API exposes several app_apikey routes that trust a caller-provided projectKey after validating only that the API key itself is valid and that the target projectKey exists. The authorization flow does not verify that the authenticated API key and the requested project belong to the same tenant. Because the public tracker design exposes projectKey to browser-side code, an attacker who owns any valid API key for their own tenant can target another tenant's project by reusing that public projectKey. The vulnerable routes allow the attacker to enumerate victim user sessions and then retrieve sensitive session event data across the tenant boundary. This vulnerability is fixed in 1.26.0.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-45296 has been found in OpenReplay.
Confidential information can be exposed externally. CVSS score: 7.7/10.
What to do: upgrade OpenReplay to 1.26.0 or later.
If unsure, ask your IT team or search "OpenReplay CVE-2026-45296" on the vendor's site.
CVE-2026-45296 (OpenReplay) — CWE-284 / CVSS v3 7.7
Attack vector: remote (network-reachable) / no user interaction
Patched: 1.26.0 — apply immediately
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.
A vulnerability (CWE-284) exists in OpenReplay.
Check the vendor advisory for the affected versions of OpenReplay.
Severity: High (CVSS 7.7/10). Confidential information can be exposed externally.
Update to 1.26.0.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'OpenReplay' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'OpenReplay' . | 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
OpenReplayを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade OpenReplay to 1.26.0ステージング環境で 1.26.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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3Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。