How severe is CVE-2026-37106?

CVE-2026-37106 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-37106 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-37106?

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

When was CVE-2026-37106 published?

CVE-2026-37106 was published on 2026-06-30 and last updated on 2026-07-21.

CVE-2026-37106

CVE-2026-37106 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-640.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-640
Published: 2026-06-30
Last modified: 2026-07-21

Description

An issue in DokuWiki 2025-05-14b "Librarian" 56.2 allows a remote attacker to create an account via the register function in inc/auth.php. NOTE: this is disputed by the Supplier because this is the intentional behavior when the product is configured for self-registration (a non-default feature). The supplier also notes that there is no configuration migration scenario that would result in the self-registration being enabled without the administrators knowledge.

Frequently asked questions

What is CVE-2026-37106?: An issue in DokuWiki 2025-05-14b "Librarian" 56.2 allows a remote attacker to create an account via the register function in inc/auth.php. NOTE: this is disputed by the Supplier because this is the intentional behavior when the product is configured for self-registration (a non-default feature). The supplier also notes that there is no configuration migration scenario that would result in the self-registration being enabled without the administrators knowledge.
How severe is CVE-2026-37106?: CVE-2026-37106 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-37106 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-37106?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-37106 published?: CVE-2026-37106 was published on 2026-06-30 and last updated on 2026-07-21.

References

Other CWE-640 vulnerabilities

CVE-2025-63314 — Critical (CVSS 10.0): A static password reset token in the password reset function of DDSN Interactive Acora CMS v10.7.1 allows attackers to…
CVE-2023-7028 — Critical (CVSS 10.0): An issue has been discovered in GitLab CE/EE affecting all versions from 16.1 prior to 16.1.6, 16.2 prior to 16.2.9,…
CVE-2026-77264 — Critical (CVSS 9.8): The Automation Web Platform – Notifications and OTP for WooCommerce, Advanced Country Code plugin for WordPress is…
CVE-2026-15689 — Critical (CVSS 9.8): Dancer2::Plugin::Auth::Extensible versions through 0.713 for Perl allow password reset link poisoning via the request…
CVE-2026-12949 — Critical (CVSS 9.8): The Wishlist Member plugin for WordPress is vulnerable to Account Takeover via Insufficient Verification of Data…
CVE-2026-66691 — Critical (CVSS 9.8): Unauthenticated Broken Access Control in Nokri <= 1.6.6 versions.

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