Authorization Flaw in apache-polaris (CVE-2026-64640)
Summary
Vulnerability in apache-polaris (CVE-2026-64640). Confidential information can be exposed externally. Mitigation: upgrade to 1.7.0 or later.
Original description
The description as published by the source.
Apache Polaris did not consistently validate storage locations supplied during table and view registration.
An authenticated principal with permission to register a table or view could, depending on the affected release and registration path, cause Polaris to use the catalog's storage credentials to read a caller-selected Iceberg metadata file before verifying that the file was within the catalog's allowed storage locations.
If the catalog's underlying credentials could read an object outside that boundary, this could disclose limited information from the object.
Polaris could also accept registration metadata located within an allowed location that contained references to storage locations outside the allowed boundary.
This second condition did not itself cause Polaris to read the referenced external locations during registration.
The demonstrated impact is limited to confidentiality.
No unauthorized data modification or availability impact has been demonstrated.
The server-side read requires a deployment using S3 credential vending and an object outside the allowed locations that the catalog's underlying storage credentials can read.
Exploitation requires an authenticated principal with table- or view-registration privileges.
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-2026-64640 has been found in apache-polaris.
Confidential information can be exposed externally. CVSS score: 6.5/10.
What to do: upgrade apache-polaris to 1.7.0 or later.
If unsure, ask your IT team or search "apache-polaris CVE-2026-64640" on the vendor's site.
CVE-2026-64640 (apache-polaris) — CWE-863 / CVSS v3 6.5
Attack vector: remote (network-reachable) / no user interaction
Patched: 1.7.0 — 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.
Incorrect authorization (CWE-863) exists in apache-polaris.
Check the vendor advisory for the affected versions of apache-polaris.
Severity: Medium (CVSS 6.5/10). Confidential information can be exposed externally.
Update to 1.7.0.
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 'apache-polaris' . 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 'apache-polaris' . | 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-polaris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 apache-polaris to 1.7.0ステージング環境で 1.7.0 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。
-
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。
Affected packages
References
- advisory lists.apache.org
- advisory nvd.nist.gov
- advisory github.com
- web github.com
- web openwall.com