CVE-2023-26152Public exploitNetwork attack vector

Arbitrary file read via root-prefix path check

Published Oct 3, 2023 · Updated Sep 23, 2024

Path traversal in nbluis static-server 2.2.1 and earlier allows remote attackers to read files outside the served root via crafted URLs. The validPath function accepts a resolved pathname whenever its string begins with rootPath, so a sibling directory sharing that prefix passes the check. No authentication or user interaction is required; disclosure is limited to files readable by the server process under a prefix-matching path.

CVSS severity7.5
High
EPSS probability1.09%
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 nbluis static-server 2.2.1 and earlier allows remote attackers to read files outside the served root via crafted URLs. The validPath function accepts a resolved pathname whenever its string begins with rootPath, so a sibling directory sharing that prefix passes the check. No authentication or user interaction is required; disclosure is limited to files readable by the server process under a prefix-matching path.

The record

CVE
CVE-2023-26152
Published
Oct 3, 2023
Updated
Sep 23, 2024
Vendor
nbluis
Product
static-server
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2024Record 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 <*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

nbluis · static-serverversion=0 <*

Published CVSS scores

7.5GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A: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')
T1190Exploit Public-Facing Application

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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