CVE-2022-24741

High memory usage in Nextcloud server

MEDIUM
6.5
CVSS Score
Published: March 9, 2022 at 09:30 PM UTC
Updated: June 17, 2026 at 04:32 AM UTC
1 product affected across 1 vendorNextcloud/server

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%
SSVC
PoC

Description

Nextcloud server is an open source, self hosted cloud style services platform. In affected versions an attacker can cause a denial of service by uploading specially crafted files which will cause the server to allocate too much memory / CPU. It is recommended that the Nextcloud Server is upgraded to 21.0.8 , 22.2.4 or 23.0.1. Users unable to upgrade should disable preview generation with the `'enable_previews'` config flag.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

21.0.0 ≤ v < 21.0.822.0.0 ≤ v < 22.2.423.0.0
Affected range stops below 21.0.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 22.2.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

x_refsource_MISCPatchThird Party Advisory
https://github.com/nextcloud/server/pull/30291
x_refsource_MISCExploitThird Party Advisory
https://hackerone.com/reports/1261225
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/202208-17

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400CWE-770

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