Authorization Flaw in github.com/openbao/openbao (CVE-2026-71543)
Summary
Vulnerability in github.com/openbao/openbao (CVE-2026-71543). Risk of unauthorized operations or information disclosure. Exploitable via allowed_uri_sans_template.
Original description
The description as published by the source.
OpenBao's Templated Policies Allow Privilege Escalation via Wildcard Characters in github.com/openbao/openbao
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-2026-71543 has been found in github.com/openbao/openbao.
Attackers can target a specific entry point like allowed_uri_sans_template over the network to misuse the product.
Risk of unauthorized operations or information disclosure.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "github.com/openbao/openbao CVE-2026-71543" on the vendor's site.
CVE-2026-71543 (github.com/openbao/openbao) — CWE-863
Attack surface: allowed_uri_sans_template / allowed_domains / alice.example.com / bob.example.com
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 github.com/openbao/openbao. Attackers reach the vulnerable code path via allowed_uri_sans_template.
Check the vendor advisory for the affected versions of github.com/openbao/openbao. Attack surface: allowed_uri_sans_template / allowed_domains / alice.example.com / bob.example.com.
Severity: ?. 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 request patterns matching this CVE's known IOCs. Run grep -r 'github.com/openbao/openbao' . 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 'github.com/openbao/openbao' . | 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
github.com/openbao/openbaoを grep し、稼働しているサービス・バージョンを把握する。 -
2Post-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
References
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- patch github.com
- patch github.com
- patch github.com
- patch github.com
- web github.com
- web github.com
- web github.com