CVE-2026-88940Public exploitNetwork attack vector

Directory enumeration via unbounded workspace path

Published Sep 10, 2026 · Updated Sep 10, 2026

Path traversal in Knowns 0 through 0.33.0 allows remote attackers to enumerate arbitrary host directories via the workspace browse API. The browse handler converts the untrusted path query value to an absolute path and passes it to os.ReadDir without an allowlist or workspace-root containment check. The unauthenticated network endpoint returns absolute paths and project markers, exposing directory structure but not file contents.

CVSS severity6.9
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Knowns 0 through 0.33.0 allows remote attackers to enumerate arbitrary host directories via the workspace browse API. The browse handler converts the untrusted path query value to an absolute path and passes it to os.ReadDir without an allowlist or workspace-root containment check. The unauthenticated network endpoint returns absolute paths and project markers, exposing directory structure but not file contents.

The record

CVE
CVE-2026-88940
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
Knowns
Product
Knowns
Classifications
CWE-22, T1083
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=0.33.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Knowns · Knownsversion=0 <=0.33.0

Published CVSS scores

5.3VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.9VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1083File and Directory Discovery

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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