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CVE-2026-26187

28
FAUCET Score

CVE-2026-26187 is a path traversal vulnerability affecting lakeFS, an open-source tool for Git-like object storage, in versions prior to 1.77.0. Authenticated users could read and write files outside their designated storage boundaries due to insufficient path validation in the local block adapter. This vulnerability has a CVSS score of 8.1 (High), indicating a network-based attack with low complexity, requiring low privileges, and leading to high confidentiality and integrity impacts. There is currently no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage are minimal, suggesting low current attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.77.0CPE matchmatch criteria
cpe:2.3:a:lakefs:lakefs:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 20th percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/treeverse/lakefsFixed in: 1.77.0

Vendor Advisories (1)

goGHSA-699m-4v95-rmpmhigh

lakeFS vulnerable to path traversal in local block adapter allow cross-namespace and sibling directory access

Feb 13, 2026

References

github.com / treeverse/lakeFS/commit/cbc106275357302a834280f133265dc39f1384ce
Patch
github.com / treeverse/lakeFS/releases/tag/v1.77.0
ProductRelease Notes
github.com / treeverse/lakeFS/security/advisories/GHSA-699m-4v95-rmpm
MitigationVendor Advisory