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CVE-2026-25555 is an authentication bypass vulnerability affecting OpenBullet2 through version 0.3.2. The flaw is in the API key authentication middleware, which compares the supplied X-Api-Key header value against an empty default AdminApiKey string. Because the default administrative API key can be empty, an unauthenticated attacker can send an empty X-Api-Key header and satisfy the authentication check. Successful exploitation allows access to the administrative console and all API endpoints without valid credentials.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An authentication bypass vulnerability affecting OpenBullet2.
An authentication bypass vulnerability in OpenBullet2 through version 0.3.2 where supplying an empty X-Api-Key header can bypass API key checks and grant unauthenticated admin access to the admin console and all API endpoints.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.