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Back to active CVEs
Critical · CVSS 9.8CVE-2026-56207

Apache Impala: SAML authentication bypass via forged bearer tokenCVE-2026-56207

Answer in brief

CVE-2026-56207 records a Critical severity (CVSS 9.8) vulnerability in Apache Impala: SAML authentication bypass via forged bearer token. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/Apache Impala (generic), Apache Software Foundation/Apache Impala (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 9, 2026Updated Sep 10, 2026Source checked Oct 24, 2026First seen by HOL Sep 9, 2026Material review Sep 10, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.8
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Apache Software Foundation/Apache Impala (generic), Apache Software Foundation/Apache Impala (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:apache:impala:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/Apache Impalageneric4.0.0Not reported
Apache Software Foundation/Apache Impalageneric>=4.0.0 <=4.5.1Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/Apache Impala, Apache Software Foundation/Apache Impala.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 9, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 10, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 9, 2026

Sources and claim methodology

  • Source referencelists.apache.org
  • Source referenceopenwall.com
Upstream source description

Signature of Bearer token is not verified in last step of SAML2 authentication for Impala's hs2-http interface, allowing altering user name and acting as another user. This issue affects Apache Impala: >=4.0.0. Users are recommended to upgrade to version 4.5.2, which fixes this issue.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-347
Source
CVE List V5
Source checked
Oct 24, 2026
References
2 linked sources
Open source record