GHSA-fvv5-h29g-f6w5
User with ci:ReadAction permissions and write permissions to one path in a repository may copy objects from any path in the repository
GHSA-fvv5-h29g-f6w5 is a medium vulnerability (CVSS 5.3) in github.com/treeverse/lakefs, published February 22, 2024. No source lists public exploit code. Fixed in github.com/treeverse/lakefs 1.12.1.
- Severity
- 5.3 MediumCVSS 3.1, GitHub Advisories
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
1.12.1github.com/treeverse/lakefs +1 more
Description
Impact
A bug in permissions validation allows a user with the ci:ReadAction permission to skip read checks when copying an object. If they additionally have read and write permission to path in the repository, they can copy an otherwise unreadable object and read it.
In order to be affected and exploitable, the following conditions must ALL occur on the same user:
ci:ReadActionenabled for the repository. Predefined policies RepoManagementRead and RepoManagementFullAccess allow this action.fs:ReadObjectandfs:WriteObjectenabled for some path.fs:ReadObjectnot available for some path
Such a user can use (1) to copy the unreadable object (3) to a path that they can read and write (2). At that point they can read the object copy.
Patches
Releases >= 1.12.1 fix this issue in lakeFS.
Workarounds
As a workaround, use RBAC to deny ci:* permissions to all users, or to all users who have limited read access.
Many installations are unaffected:
- Installations using ACLs are not affected. This includes all OSS installations that have not implemented an external authorization server. We do not know of any OSS installations that have implemented such a server. ACLs that allow ci:ReadAction also allow reading repositories, so no capabilities are granted.
- Installations using RBAC that use only predefined policies with "all" ARNs ("*") are not affected. This includes all installations that have not defined any new groups in RBAC.
In order to be affected, installations using RBAC must define users and simultaneous allow ci:ReadAction and disallow fs:ReadObject for some path. ci:ReadAction is available in policies RepoManagementReadAll and RepoManagementFullAccess. By default these actions are configured for groups Developers and above, for all repositories and paths.
References
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/treeverse/lakefsGo | 0.90.0 to 1.12.0 | 1.12.1 |
github.com/treeverse/lakefsGo | 0.90.0 up to 1.12.1 | 1.12.1 |
What each source reports
GitHub Advisories Score used
User with ci:ReadAction permissions and write permissions to one path in a repository may copy objects from any path in the repository
Impact
A bug in permissions validation allows a user with the ci:ReadAction permission to skip read checks when copying an object. If they additionally have read and write permission to path in the repository, they can copy an otherwise unreadable object and read it.
In order to be affected and exploitable, the following conditions must ALL occur on the same user:
ci:ReadActionenabled for the repository. Predefined policies RepoManagementRead and RepoManagementFullAccess allow this action.fs:ReadObjectandfs:WriteObjectenabled for some path.fs:ReadObjectnot available for some path
Such a user can use (1) to copy the unreadable object (3) to a path that they can read and write (2). At that point they can read the object copy.
Patches
Releases >= 1.12.1 fix this issue in lakeFS.
Workarounds
As a workaround, use RBAC to deny ci:* permissions to all users, or to all users who have limited read access.
Many installations are unaffected:
- Installations using ACLs are not affected. This includes all OSS installations that have not implemented an external authorization server. We do not know of any OSS installations that have implemented such a server. ACLs that allow ci:ReadAction also allow reading repositories, so no capabilities are granted.
- Installations using RBAC that use only predefined policies with "all" ARNs ("*") are not affected. This includes all installations that have not defined any new groups in RBAC.
In order to be affected, installations using RBAC must define users and simultaneous allow ci:ReadAction and disallow fs:ReadObject for some path. ci:ReadAction is available in policies RepoManagementReadAll and RepoManagementFullAccess. By default these actions are configured for groups Developers and above, for all repositories and paths.
References
- Record
GHSA-fvv5-h29g-f6w5- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSV
User with ci:ReadAction permissions and write permissions to one path in a repository may copy objects from any path in the repository
Impact
A bug in permissions validation allows a user with the ci:ReadAction permission to skip read checks when copying an object. If they additionally have read and write permission to path in the repository, they can copy an otherwise unreadable object and read it.
In order to be affected and exploitable, the following conditions must ALL occur on the same user:
ci:ReadActionenabled for the repository. Predefined policies RepoManagementRead and RepoManagementFullAccess allow this action.fs:ReadObjectandfs:WriteObjectenabled for some path.fs:ReadObjectnot available for some path
Such a user can use (1) to copy the unreadable object (3) to a path that they can read and write (2). At that point they can read the object copy.
Patches
Releases >= 1.12.1 fix this issue in lakeFS.
Workarounds
As a workaround, use RBAC to deny ci:* permissions to all users, or to all users who have limited read access.
Many installations are unaffected:
- Installations using ACLs are not affected. This includes all OSS installations that have not implemented an external authorization server. We do not know of any OSS installations that have implemented such a server. ACLs that allow ci:ReadAction also allow reading repositories, so no capabilities are granted.
- Installations using RBAC that use only predefined policies with "all" ARNs ("*") are not affected. This includes all installations that have not defined any new groups in RBAC.
In order to be affected, installations using RBAC must define users and simultaneous allow ci:ReadAction and disallow fs:ReadObject for some path. ci:ReadAction is available in policies RepoManagementReadAll and RepoManagementFullAccess. By default these actions are configured for groups Developers and above, for all repositories and paths.
References
- Record
GHSA-fvv5-h29g-f6w5- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVGO-2024-2581No score
User with ci:ReadAction permissions and write permissions to one path in a repository may copy objects from any path in the repository in github.com/treeverse/lakefs
User with ci:ReadAction permissions and write permissions to one path in a repository may copy objects from any path in the repository in github.com/treeverse/lakefs
- Record
GO-2024-2581- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.