Improper Access Control in github.com/treeverse/lakefs

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.7 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

EPSS

No dated EPSS signal available.

As published by the source; long descriptions are shortened.

Impact 1. [medium] A user with write permissions to a portion of a repository may use the S3 gateway to copy any object in the repository if they know its name. 1. [medium] A user with permission to write any one of tags, branches, or commits on a repository may write all of them. 1. [low] A user with permission to read any one of tags, branches, or commits on a repository may read all of them. 1. [low] A user allowed to list objects in a repository or read repository meta-data may retrieve graveler information about the location on underlying storage of all objects stored in any commit that they can view. If the user additionally has the capability to read underlying storage, they will be able to retrieve metadata associated with all objects in that commit. For more information If you have any questions or comments about this advisory please: Email us at security@treeverse.io. Open an issue on https://github.com/treeverse/lakeFS/issues/new.

Published by the source

28 Oct 2021, 16:27 UTC

Last modified by the source

7 Apr 2023, 21:56 UTC

Source last checked

26 Oct 2026, 14:58 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-m836-gxwq-j2pm

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# Patch Next advisory brief: GHSA-m836-gxwq-j2pm

Advisory: Improper Access Control in github.com/treeverse/lakefs
IDs: GHSA-m836-gxwq-j2pm
Record: https://patchnext.com/advisories/ghsa-m836-gxwq-j2pm (revision 1, source checked 26 Oct 2026, 14:58 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/treeverse/lakefs 0.53.1. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/treeverse/lakefs: affected < 0.53.1; fixed in 0.53.1

## Suggested inspection (read-only)
- Go github.com/treeverse/lakefs: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/treeverse/lakefs.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-m836-gxwq-j2pm (GitHub-reviewed advisory GHSA-m836-gxwq-j2pm lists affected ranges: Go github.com/treeverse/lakefs >=0 <0.53.1)

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