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Vulnerabilities

Vulnerability · CVE-2026-26187

lakeFS is an open-source tool that transforms object storage into a Git-like repositories.

Published Feb 13, 2026 · catalog updated Feb 13, 2026 · lakeFS

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-26187. EPSS is 0.45%. Act only if a listed version of lakeFS is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.45%
Remediation
Version ranges on file
Affected products
vendor treeverse lakeFS < 1.77.0

lakeFS is an open-source tool that transforms object storage into a Git-like repositories. Prior to 1.77.0, the local block adapter (pkg/block/local/adapter.go) allows authenticated users to read and write files outside their designated storage boundaries. The verifyRelPath function used strings.HasPrefix() to verify that requested paths fall within the configured storage directory. This check was insufficient because it validated only the path prefix without requiring a path separator, allowing access to sibling directories with similar names. Also, the adapter verified that resolved paths st

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor treeverse lakeFS < 1.77.0< 1.77.0

How to fix CVE-2026-26187

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-26187. EPSS is 0.45%. Act only if a listed version of lakeFS is installed.

Which versions are affected?

Compare what you have installed with treeverse lakeFS < 1.77.0 < 1.77.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.45%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 13, 2026 · EUVD

    Detected

    lakeFS is an open-source tool that transforms object storage into a Git-like repositories. Prior to 1.77.0, the local block adapter (pkg/block/local/adapter.go) allows authenticated users to read and write files outside their designated storage boundaries. The verifyRelPath function used strings.HasPrefix() to verify that requested paths fall within the configured storage directory. This check was

  2. Feb 13, 2026 · EUVD

    Updated

    lakeFS is an open-source tool that transforms object storage into a Git-like repositories. Prior to 1.77.0, the local block adapter (pkg/block/local/adapter.go) allows authenticated users to read and write files outside their designated storage boundaries. The verifyRelPath function used strings.HasPrefix() to verify that requested paths fall within the configured storage directory. This check was

Sources

  • CVE.orgVulnerability recordCVE-2026-26187

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-26187

    30-day exploitation probability 0.45%

    first.org
  • EUVDVulnerability recordEUVD-2026-5918

    lakeFS is an open-source tool that transforms object storage into a Git-like repositories. Prior to 1.77.0, the local block adapter (pkg/block/local/adapter.go) allows authenticated users to read and write files outside their designated storage boundaries. The verifyRelPath funct

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 6, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 3, 2026