How severe is CVE-2026-35558?

CVE-2026-35558 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-35558 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35558?

CVE-2026-35558 affects Amazon Athena Odbc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35558?

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.

Does CVE-2026-35558 have an EU (EUVD) identifier?

Yes. CVE-2026-35558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18851.

When was CVE-2026-35558 published?

CVE-2026-35558 was published on 2026-04-03 and last updated on 2026-07-24.

CVE-2026-35558

CVE-2026-35558 is a high-severity vulnerability in Amazon Athena Odbc with a CVSS 3.x base score of 7.8. 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-77.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v4: 7.3
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18851
Weakness: CWE-77
Affected product: Amazon Athena Odbc
Published: 2026-04-03
Last modified: 2026-07-24

Description

Improper neutralization of special elements in the authentication components in Amazon Athena ODBC driver before 2.1.0.0 might allow a threat actor to execute arbitrary code or redirect authentication flows by using specially crafted connection parameters that are processed by the driver during user-initiated authentication. To remediate this issue, users should upgrade to version 2.1.0.0.

Frequently asked questions

What is CVE-2026-35558?: Improper neutralization of special elements in the authentication components in Amazon Athena ODBC driver before 2.1.0.0 might allow a threat actor to execute arbitrary code or redirect authentication flows by using specially crafted connection parameters that are processed by the driver during user-initiated authentication. To remediate this issue, users should upgrade to version 2.1.0.0.
How severe is CVE-2026-35558?: CVE-2026-35558 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-35558 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35558?: CVE-2026-35558 affects Amazon Athena Odbc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35558?: 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.
Does CVE-2026-35558 have an EU (EUVD) identifier?: Yes. CVE-2026-35558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18851.
When was CVE-2026-35558 published?: CVE-2026-35558 was published on 2026-04-03 and last updated on 2026-07-24.

References

Affected products (1)

cpe:2.3:a:amazon:athena_odbc:*:*:*:*:*:*:*:*

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