Authenticated service interruption via unbounded field values
Published Jan 14, 2023 · Updated Mar 10, 2025
Uncontrolled resource consumption in Nextcloud Deck allows remote authenticated users to interrupt service by submitting oversized field values. Deck service methods accepted unbounded strings, including an overly long board title, and passed them to database writes that returned errors under repeated requests. Exploitation requires low-privilege Deck access and user interaction; the published advisory does not define the interaction or claim a full outage.
Summary
What happened
Uncontrolled resource consumption in Nextcloud Deck allows remote authenticated users to interrupt service by submitting oversized field values. Deck service methods accepted unbounded strings, including an overly long board title, and passed them to database writes that returned errors under repeated requests. Exploitation requires low-privilege Deck access and user interaction; the published advisory does not define the interaction or claim a full outage.
The record
- CVE
- CVE-2023-22470
- Published
- Jan 14, 2023
- Updated
- Mar 10, 2025
- Vendor
- Nextcloud GmbH
- Product
- Security Advisories
- Classifications
- CWE-400, CWE-20, T1499.003
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 14, 2023CVE publishedPublication date reported by the CVE source.
- Mar 10, 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.
- Affected versionversion=>= 1.6.0, < 1.6.5
- Affected versionversion=>= 1.7.0, < 1.7.3
- Affected versionversion=>= 1.8.0, < 1.8.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
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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