CVE-2021-43492Public exploitNetwork attack vector

Arbitrary file disclosure via client-route path traversal

Published Nov 12, 2021 · Updated Aug 4, 2024

Path traversal in AlquistManager commit 280d99f43b11378212652e75f6f3159cde9c1d36 allows remote attackers to read arbitrary files. The client route passes attacker-controlled path and file values to Flask send_from_directory after concatenating the path with the client directory. No authentication or user interaction is required; direct impact is file disclosure within the service account's filesystem permissions, not code execution.

CVSS severity7.5
High
EPSS probability4.18%
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 AlquistManager commit 280d99f43b11378212652e75f6f3159cde9c1d36 allows remote attackers to read arbitrary files. The client route passes attacker-controlled path and file values to Flask send_from_directory after concatenating the path with the client directory. No authentication or user interaction is required; direct impact is file disclosure within the service account's filesystem permissions, not code execution.

The record

CVE
CVE-2021-43492
Published
Nov 12, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/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')
T1005Data from Local System

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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