Authorization Flaw in Apache (CVE-2026-71898)
Summary
Vulnerability in Apache (CVE-2026-71898). Risk of unauthorized operations or information disclosure. Exploitable via PUT /projects/{projectCode}/workflow-instances/{id}.
Original description
The description as published by the source.
An incorrect authorization check in Apache DolphinScheduler allows an authenticated user with only read permission for a project to modify a workflow instance in that project through the PUT /projects/{projectCode}/workflow-instances/{id} endpoint. The endpoint does not enforce the write permission required for this operation, allowing the user to make unauthorized changes to workflow instances.
This issue affects Apache DolphinScheduler: before 3.4.3.
Users are recommended to upgrade to version 3.4.3, which fixes the issue.
Source: NIST National Vulnerability Database 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-2026-71898 has been found in Apache.
Attackers can target a specific entry point like PUT /projects/{projectCode}/workflow-instances/{id} over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 4.3/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Apache CVE-2026-71898" on the vendor's site.
CVE-2026-71898 (Apache) — CWE-863 / CVSS v3 4.3
Attack vector: remote (network-reachable) / no user interaction
Attack surface: PUT /projects/{projectCode}/workflow-instances/{id}
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.
Incorrect authorization (CWE-863) exists in Apache. Attackers reach the vulnerable code path via PUT /projects/{projectCode}/workflow-instances/{id}.
Check the vendor advisory for the affected versions of Apache. Attack surface: PUT /projects/{projectCode}/workflow-instances/{id}.
Severity: Medium (CVSS 4.3/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual PUT /projects/{projectCode}/workflow-instances/{id} requests with malformed payloads or SQL meta-characters. Run grep -r 'Apache' . 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
-
1Identify exposure identify
grep -r 'Apache' . | 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
Apacheを grep し、稼働しているサービス・バージョンを把握する。 -
2Hunt for indicators of compromise detect
grep 'PUT /projects/{projectCode}/workflow-instances/{id}' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'アクセスログで
PUT /projects/{projectCode}/workflow-instances/{id}への異常なリクエスト (不正な認証ヘッダ・SQLメタ文字)を過去 30〜90日分捜索。WAF/SIEM があれば該当パスのアラート発火履歴を確認。 -
3Post-deployment verification verify
Replay attack against PUT /projects/{projectCode}/workflow-instances/{id} on staging to confirm patch closes the vector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 2 と同じログクエリでアラート再発が無いか継続監視。
References
- web lists.apache.org
- web openwall.com
- web nvd.nist.gov
- web github.com