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An authenticated user can crash lakeFS by exhausting server memory

Moderate
guy-har published GHSA-j7jw-28jm-whr6 Feb 20, 2025

Package

No package listed

Affected versions

< 1.50.0

Patched versions

1.50.0

Description

Impact

An authenticated user can crash lakeFS by exhausting server memory. This is an authenticated denial-of-service issue.

Patches

This problem has been patched and exists in versions 1.49.1 and below

Workarounds

On S3 backends, configure

# ...
blockstore:
  s3:
    disable_pre_signed_multipart: true

or set environment variable LAKEFS_BLOCKSTORE_S3_DISABLE_PRE_SIGNED_MULTIPART to true.

References

Are there any links users can visit to find out more?

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE ID

CVE-2025-27100

Weaknesses

No CWEs

Credits