CVE-2022-21192Public exploitNetwork attack vector

Arbitrary file disclosure via unsanitized request paths

Published Jan 25, 2023 · Updated Apr 1, 2025

Path traversal in Beeno Tung serve-lite before 1.1.1 allows remote attackers to read files outside the configured web root. The HTTP request handler passes req.url to path.join without neutralizing dot-dot segments, allowing the resolved path to escape rootDir. No authentication or user interaction is required; disclosure is limited to files readable by the server process.

CVSS severity7.5
High
EPSS probability1.34%
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 Beeno Tung serve-lite before 1.1.1 allows remote attackers to read files outside the configured web root. The HTTP request handler passes req.url to path.join without neutralizing dot-dot segments, allowing the resolved path to escape rootDir. No authentication or user interaction is required; disclosure is limited to files readable by the server process.

The record

CVE
CVE-2022-21192
Published
Jan 25, 2023
Updated
Apr 1, 2025
Vendor
Beeno Tung
Product
serve-lite
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 1, 2025Record 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?

Beeno Tung · serve-liteversion=0 <*

Published CVSS scores

7.5SnykCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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