What’s Vulnerable › Vulnerabilities
CVE-2026-34086: AbuseFilter misuses ::userCanBitfield, exposing access-controlled information
- Severity: low (CVSS 2.1 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-11 · updated 2026-10-26
- Weakness: CWE-20
Description
Vulnerability in Wikimedia Foundation AbuseFilter. This issue affects AbuseFilter: from * before 1.43.7, 1.44.4, 1.45.2.
Affected products
- Wikimedia Foundation AbuseFilter: before 1.43.7, 1.44.4, 1.45.2 — fixed in 1.44.4, 1.45.2, 1.43.7
How to fix
Upgrade to a fixed version: Wikimedia Foundation AbuseFilter 1.44.4, 1.45.2, 1.43.7. Check the vendor advisory for mitigations.
References
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