How severe is CVE-2026-57866?

CVE-2026-57866 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-57866 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-57866?

CVE-2026-57866 affects Apache Impala. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-57866?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-57866 published?

CVE-2026-57866 was published on 2026-09-09 and last updated on 2026-09-10.

CVE-2026-57866

CVE-2026-57866 is a high-severity vulnerability in Apache Impala with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Apache Impala
Published: 2026-09-09
Last modified: 2026-09-10

Description

Server side request forgery in Apache Impala versions 4.4.x and 4.5.x. Authenticated Impala users with permissions to execute the ai_generate_text() function can exfiltrate secrets provided by the credential providers configured in the `hadoop.security.credential.provider.path` property of `core-site.xml`. The secret's key must be known to the user.

Frequently asked questions

What is CVE-2026-57866?: Server side request forgery in Apache Impala versions 4.4.x and 4.5.x. Authenticated Impala users with permissions to execute the ai_generate_text() function can exfiltrate secrets provided by the credential providers configured in the `hadoop.security.credential.provider.path` property of `core-site.xml`. The secret's key must be known to the user.
How severe is CVE-2026-57866?: CVE-2026-57866 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-57866 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-57866?: CVE-2026-57866 affects Apache Impala. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-57866?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-57866 published?: CVE-2026-57866 was published on 2026-09-09 and last updated on 2026-09-10.

References

Affected products (1)

cpe:2.3:a:apache:impala:*:*:*:*:*:*:*:*

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