CVE-2022-35931Network attack vector

Common-password issuance via pre-shuffle validation

Published Sep 6, 2022 · Updated Apr 23, 2025

Weak password generation in Nextcloud Password Policy before 22.2.10, 23.0.7, and 24.0.3 allows administrators to issue common passwords. The generator runs HIBPValidator before shuffling the candidate, so the returned password can differ from the string checked against the common-password list. Administrative access to a password-generating workflow is required, and the result can violate the configured policy for user or share credentials.

CVSS severity2.7
Low
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak password generation in Nextcloud Password Policy before 22.2.10, 23.0.7, and 24.0.3 allows administrators to issue common passwords. The generator runs HIBPValidator before shuffling the candidate, so the returned password can differ from the string checked against the common-password list. Administrative access to a password-generating workflow is required, and the result can violate the configured policy for user or share credentials.

The record

CVE
CVE-2022-35931
Published
Sep 6, 2022
Updated
Apr 23, 2025
Vendor
Nextcloud GmbH
Product
Security Advisories
Classifications
CWE-261, CWE-326
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 6, 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=< 22.2.10
  2. Affected versionversion=>= 23.0.0, < 23.0.7
  3. Affected versionversion=>= 24.0.0, < 24.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Nextcloud GmbH · Security Advisoriesversion=< 22.2.10; version=>= 23.0.0, < 23.0.7; version=>= 24.0.0, < 24.0.3

Published CVSS scores

2.7GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-261Weak Encoding for Password
CWE-326Inadequate Encryption Strength

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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