CVE-2026-119705
SerpBear before 3.1.1 Missing Authentication via POST /api/notify
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
SerpBear before 3.1.1 contains a missing authentication vulnerability in pages/api/notify.ts that allows remote unauthenticated attackers to trigger notification emails because verifyUser() is never called. Attackers can repeatedly POST to /api/notify, optionally with a domain parameter, to exhaust SMTP rate limits, trigger provider abuse flags and flood recipients.
| CWE | CWE-306 |
| Vendor | towfiqi |
| Product | serpbear |
| Published | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
towfiqi / serpbear
0 < 3.1.1
References
github.com: https://github.com/towfiqi/serpbear/issues/359 github.com: https://github.com/towfiqi/serpbear github.com: https://github.com/towfiqi/serpbear/commit/12dc0a4bd91f06de2dab96f797c495942f7ef8c9 github.com: https://github.com/towfiqi/serpbear/blob/v3.1.0/pages/api/notify.ts#L16-L21 github.com: https://github.com/towfiqi/serpbear/releases/tag/v3.1.1 vulncheck.com: https://www.vulncheck.com/advisories/serpbear-before-3.1.1-missing-authentication-via-post-api-notify
Credits
George Chen