How severe is CVE-2026-4101?

CVE-2026-4101 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-4101 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-4101?

CVE-2026-4101 primarily affects Ibm Security Verify Access. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-4101?

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-2026-4101 have an EU (EUVD) identifier?

Yes. CVE-2026-4101 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18066.

When was CVE-2026-4101 published?

CVE-2026-4101 was published on 2026-04-01 and last updated on 2026-06-17.

CVE-2026-4101

CVE-2026-4101 is a high-severity vulnerability in Ibm Security Verify Access with a CVSS 3.x base score of 8.1. 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-287.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18066
Weakness: CWE-287
Affected product: Ibm Security Verify Access
Published: 2026-04-01
Last modified: 2026-06-17

Description

IBM Verify Identity Access Container 11.0 through 11.0.2 and IBM Security Verify Access Container 10.0 through 10.0.9.1 and IBM Verify Identity Access 11.0 through 11.0.2 and IBM Security Verify Access 10.0 through 10.0.9.1 under certain load conditions could allow an attacker to bypass authentication mechanisms and gain unauthorized access to the application.

Frequently asked questions

What is CVE-2026-4101?: IBM Verify Identity Access Container 11.0 through 11.0.2 and IBM Security Verify Access Container 10.0 through 10.0.9.1 and IBM Verify Identity Access 11.0 through 11.0.2 and IBM Security Verify Access 10.0 through 10.0.9.1 under certain load conditions could allow an attacker to bypass authentication mechanisms and gain unauthorized access to the application.
How severe is CVE-2026-4101?: CVE-2026-4101 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-4101 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-4101?: CVE-2026-4101 primarily affects Ibm Security Verify Access. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-4101?: 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-2026-4101 have an EU (EUVD) identifier?: Yes. CVE-2026-4101 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18066.
When was CVE-2026-4101 published?: CVE-2026-4101 was published on 2026-04-01 and last updated on 2026-06-17.

References

https://www.ibm.com/support/pages/node/7268253

Affected products (4)

cpe:2.3:a:ibm:security_verify_access:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:security_verify_access_container:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:verify_identity_access:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:verify_identity_access_container:*:*:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

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