Capgo versions before 12.128.2 have an information disclosure vulnerability in an unauthenticated endpoint (/private/sso/check-domain) that reveals internal organization and provider identifiers
Affects capgoSource GCVE Database
Not known to be exploited · CVSS 5.3 Medium : upgrade to 12.128.2 when convenient.
Data as of 29 Oct 2026, 19:04 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 12.128.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 12 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade cap-go/capgo to 12.128.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubcap-go/capgopkg:github/cap-go/capgoOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
If you cannot patch yet, restricting access to the /private/sso/check-domain endpoint or implementing authentication controls may reduce exposure.
Description
Capgo versions before 12.128.2 have an information disclosure vulnerability in an unauthenticated endpoint (/private/sso/check-domain) that reveals internal organization and provider identifiers. This allows attackers to enumerate email domains and map them to organization UUIDs and SSO provider IDs, facilitating reconnaissance against Capgo tenants.