Missing SCIM token validation in Padloc exposes directory data
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
Padloc through 4.3.0 contains a missing authentication flaw in ScimServer._handleScimGet() (CWE-306). An unauthenticated remote attacker can read SCIM directories by sending any non-empty bearer token, because the token is not validated. An attacker who knows an organization id can retrieve provisioned usernames, emails, names, externalIds, and group memberships from the Users and Groups SCIM endpoints.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
Description from the CNA
Padloc through 4.3.0 contains a missing authentication vulnerability in ScimServer._handleScimGet() that allows unauthenticated attackers to read SCIM directories by sending any non-empty bearer token. Attackers who know an organization id can query the Users and Groups SCIM endpoints to retrieve provisioned usernames, emails, names, externalIds, and group memberships.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Padloc.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
Timeline
- 2026-11-03 Threatist record created from CVE-2026-121454
- 2026-11-03 Alias added: GHSA-8qrv-3gh4-gx4r
- 2026-11-05 Priority changed: MEDIUM → LOW
- 2026-11-07 CISA SSVC decision points changed
- 2026-11-07 Priority changed: LOW → MEDIUM
References
Sources
- CVE-2026-121454 · CVE Program
- CVE-2026-121454 · NVD
- FIRST EPSS
- GHSA-8qrv-3gh4-gx4r · GitHub Advisory Database · CC BY 4.0
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