CVE-2021-33800Network attack vector

Unauthenticated file read via path traversal

Published Nov 3, 2021 · Updated Aug 3, 2024

Path traversal in Alibaba Druid 1.2.3 allows remote attackers to read files outside an intended directory via a crafted path parameter. Alibaba has not disclosed the affected function or how it handles path segments when resolving the supplied parameter. Exploitation is network-accessible and unauthenticated, and the published impact is limited to confidentiality with no integrity or availability loss.

CVSS severity7.5
High
EPSS probability1.53%
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 Alibaba Druid 1.2.3 allows remote attackers to read files outside an intended directory via a crafted path parameter. Alibaba has not disclosed the affected function or how it handles path segments when resolving the supplied parameter. Exploitation is network-accessible and unauthenticated, and the published impact is limited to confidentiality with no integrity or availability loss.

The record

CVE
CVE-2021-33800
Published
Nov 3, 2021
Updated
Aug 3, 2024
Vendor
Alibaba Group
Product
Alibaba Druid
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 3, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=1.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Alibaba Group · Alibaba Druidversion=1.2.3

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NVDAV: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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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