CVE-2022-29163Network attack vector

Password-policy bypass via unchecked Circles share creation

Published May 20, 2022 · Updated Apr 23, 2025

Access-control bypass in Nextcloud Server before 22.2.6 or 23.0.0 through 23.0.2 allows remote authenticated users to create unprotected links. The Circles app share-creation path fails to consult the administrator's enforced-link-password setting before generating a share token. Any authenticated user able to share a folder through Circles can expose its contents through a link that lacks the required password.

CVSS severity3.5
Low
EPSS probability1.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access-control bypass in Nextcloud Server before 22.2.6 or 23.0.0 through 23.0.2 allows remote authenticated users to create unprotected links. The Circles app share-creation path fails to consult the administrator's enforced-link-password setting before generating a share token. Any authenticated user able to share a folder through Circles can expose its contents through a link that lacks the required password.

The record

CVE
CVE-2022-29163
Published
May 20, 2022
Updated
Apr 23, 2025
Vendor
Nextcloud GmbH
Product
Security Advisories
Classifications
CWE-671
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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=< 22.2.6
  2. Affected versionversion=>= 23.0.0, < 23.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Nextcloud GmbH · Security Advisoriesversion=< 22.2.6; version=>= 23.0.0, < 23.0.3

Published CVSS scores

3.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-671Lack of Administrator Control over Security

Public exploit references

No public exploit references are available in this record.

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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