Categories
CVE-2026-105846 medium CVSS 6.1

Open Redirect in payload (CVE-2026-105846)

Summary

Vulnerability in payload (CVE-2026-105846). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 4.0.0-canary.27 or later.

Original description

The description as published by the source.

Impact

Under certain conditions, an attacker can craft a redirect link that sends a guest user to an untrusted destination after authenticating.

Patches

Users should upgrade Payload packages to >= 3.88.0 or >= 4.0.0-canary.27.

Workarounds

Upgrading is recommended. Until then, remove user-controlled redirect values from authentication flows or restrict them to known local paths.

Source: GitHub Security Advisories (Global) NVD GitHub Advisory

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-2026-105846 has been found in payload.
Risk of unauthorized operations or information disclosure. CVSS score: 6.1/10.
What to do: upgrade payload to 4.0.0-canary.27 or later.
If unsure, ask your IT team or search "payload CVE-2026-105846" on the vendor's site.

CVE-2026-105846 (payload) — CWE-601 / CVSS v3 6.1
Attack vector: remote (network-reachable) / unauthenticated
Patched: 4.0.0-canary.27 — apply immediately
Workaround: Upgrading is recommended.
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 payload.

📍 Affected scope

Check the vendor advisory for the affected versions of payload.

🔥 Severity

Severity: Medium (CVSS 6.1/10). Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 4.0.0-canary.27.

🛡️ Workaround

Workaround: Upgrading is recommended.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'payload' . 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

  1. 1
    Identify exposure identify
    grep -r 'payload' . | 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 payload を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Apply temporary workaround mitigate
    Upgrading is recommended.

    パッチが適用されるまでの応急処置として、Upgrading is recommended. を実施。回避策の副作用 (機能低下) を確認した上で。

  3. 3
    Apply patch patch
    Upgrade payload to 4.0.0-canary.27

    ステージング環境で 4.0.0-canary.27 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。

  4. 4
    Post-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。

Affected packages

npm payload
[{"type":"SEMVER","events":[{"introduced":"4.0.0-canary.0"},{"fixed":"4.0.0-canary.27"}]}]
npm @payloadcms/next
[{"type":"SEMVER","events":[{"introduced":"4.0.0-canary.0"},{"fixed":"4.0.0-canary.27"}]}]

References

We use cookies for analytics and ad measurement. This setting applies to all Game co., Ltd. sites. Details