How severe is CVE-2026-10167?

CVE-2026-10167 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-10167 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-10167?

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-2026-10167 have an EU (EUVD) identifier?

Yes. CVE-2026-10167 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33487.

When was CVE-2026-10167 published?

CVE-2026-10167 was published on 2026-05-31 and last updated on 2026-06-17.

CVE-2026-10167

CVE-2026-10167 is a high-severity vulnerability with a CVSS 3.x base score of 7.3. 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 7.3)
CVSS v2: 7.5
CVSS v4: 5.5
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33487
Weakness: CWE-287
Published: 2026-05-31
Last modified: 2026-06-17

Description

A weakness has been identified in OUSL-GROUP-BrinaryBrains School Student Management System up to 1e70e5ad1125b86dca4ee086eb6bb121f17708b6. This impacts the function sign_auth_cookie of the file application/controllers/Login.php of the component MY_Controller. Executing a manipulation of the argument role can lead to improper authentication. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The project was informed of the problem early through an issue report but has not responded yet.

Frequently asked questions

What is CVE-2026-10167?: A weakness has been identified in OUSL-GROUP-BrinaryBrains School Student Management System up to 1e70e5ad1125b86dca4ee086eb6bb121f17708b6. This impacts the function sign_auth_cookie of the file application/controllers/Login.php of the component MY_Controller. Executing a manipulation of the argument role can lead to improper authentication. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The project was informed of the problem early through an issue report but has not responded yet.
How severe is CVE-2026-10167?: CVE-2026-10167 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-10167 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-10167?: 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-2026-10167 have an EU (EUVD) identifier?: Yes. CVE-2026-10167 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33487.
When was CVE-2026-10167 published?: CVE-2026-10167 was published on 2026-05-31 and last updated on 2026-06-17.

References

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
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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