TI-2025-19970 Aliases CVE-2025-27100 GHSA-j7jw-28jm-whr6

An authenticated user can crash lakeFS by exhausting server memory

LOW 29CWE-400Published 2025-02-21 · Updated 2025-02-21

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

lakeFS is an open-source tool that transforms your object storage into a Git-like repository. In affected versions an authenticated user can crash lakeFS by exhausting server memory. This is an authenticated denial-of-service issue. This problem has been patched in version 1.50.0. Users on versions 1.49.1 and below are affected. Users are advised to upgrade. Users unable to upgrade should either set the environment variable `LAKEFS_BLOCKSTORE_S3_DISABLE_PRE_SIGNED_MULTIPART` to `true` or configure the `disable_pre_signed_multipart` key to true in their config yaml.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00446 39th percentileScored 2026-11-07

Fix Fixed lakeFS (treeverse): 1.50.0github.com/treeverse/lakefs (Go): 1.50.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
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

Vendor	Product	Affected versions	Fixed in	Status	Source
treeverse	lakeFS	before 1.50.0	1.50.0	Patch available	CNA
—	github.com/treeverse/lakefs (Go)	before 1.50.0	1.50.0	Patch available	GHSA-j7jw-28jm-whr6

lakeFS Vendortreeverse Affected before 1.50.0 Fixed in 1.50.0 Patch available CNA
github.com/treeverse/lakefs (Go) Vendor— Affected before 1.50.0 Fixed in 1.50.0 Patch available GHSA-j7jw-28jm-whr6

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:lakefs:lakefs::::::::	—	—	treeverse

cpe:2.3:a:lakefs:lakefs:*:*:*:*:*:*:*:* Versions — — ·treeverse

Remediation

Fix · CNA lakeFS (treeverse) Fixed in 1.50.0
Fix · GHSA-j7jw-28jm-whr6 github.com/treeverse/lakefs (Go) Fixed in 1.50.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2025-27100
2026-10-03 Alias added: GHSA-j7jw-28jm-whr6

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2025-27100

Other 3

TI-2026-47004 lakeFS Unauthenticated Operator Metadata Overwrite via setup_comm_prefs CVSS 4.0MEDIUM 6.9
TI-2026-35469 lakeFS vulnerable to stored XSS in rendered markdown previews via raw HTML CVSS 3.1HIGH 8.7
TI-2026-21178 lakeFS vulnerable to path traversal in local block adapter allow cross-namespace and sibling directory access CVSS 3.1HIGH 8.1
TI-2025-42164 lakeFS is Missing Timestamp Validation in S3 Gateway Authentication CVSS 3.1MEDIUM 6.5
TI-2025-39622 lakeFS: Unauthenticated access to API usage metrics CVSS 3.1MEDIUM 5.3
TI-2024-29379 Re-creating a deleted user in lakeFS will re-enable previous user credentials that existed prior to it's deletion CVSS 3.1MEDIUM 5.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences