CVE-2026-119705 json
SerpBear before 3.1.1 Missing Authentication via POST /api/notify
published 2026-10-30 9 d ago modified 2026-10-30 9 d ago also EUVD-2026-114110
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- towfiqi serpbear 3.1.1
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 9 d ago
Exploit prediction
0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- towfiqi serpbear
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
github.com
/towfiqi/serpbear/commit/12dc0a4bd91f06de2dab96f797c495942f7ef8c9
patch
-
github.com
/towfiqi/serpbear/issues/359
issue-tracking
-
github.com
/towfiqi/serpbear
product
-
github.com
/towfiqi/serpbear/blob/v3.1.0/pages/api/notify.ts#L16-L21
technical-description
-
github.com
/towfiqi/serpbear/releases/tag/v3.1.1
release-notes
-
vulncheck.com
/advisories/serpbear-before-3.1.1-missing-authentication-via-post-api-notify
third-party-advisory
Sources
- CVE List CVE-2026-119705
- NVD CVE-2026-119705
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.