CVE-2026-101063 json
Obot before v0.23.0 Authentication Bypass via Registry API
published 2026-09-18 51 d ago modified 2026-09-28 41 d ago also GHSA-pr6h-vr44-xq8j , GO-2026-6525 , EUVD-2026-88032
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
Obot versions before v0.23.0 fail to enforce authentication on MCP Registry endpoints under /v0.1/* when registry authentication is enabled. Unauthenticated attackers can read registry metadata including server names, descriptions, repository URLs, and connect URLs by sending GET requests to /v0.1/servers.
Patch / fix
- go github.com/obot-platform/obot 0.23.0
- obot-platform obot 0.23.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 41 d ago
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 15% 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:L/VI:N/VA:N/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:L/I:N/A:N |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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 |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/obot-platform/obot | <0.23.0 |
0.23.0 |
Affected products
- obot-platform obot
Classification
References
-
github.com
/obot-platform/obot/security/advisories/GHSA-pr6h-vr44-xq8j
vendor-advisory, web, advisory
-
vulncheck.com
/advisories/obot-before-0.23.0-authentication-bypass-via-registry-api
third-party-advisory
-
github.com
/obot-platform/obot
package
-
github.com
/obot-platform/obot/releases/tag/v0.23.0
web
Sources
- CVE List CVE-2026-101063
- GitHub Advisory GHSA-pr6h-vr44-xq8j
- NVD CVE-2026-101063
- OSV GO-2026-6525
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.