CVE-2026-45810

Nextcloud: Propfind requests for file comments allowed to load comments for other files

MEDIUM

6.8

CVSS Score

Published: June 1, 2026 at 05:13 PM UTC

Updated: July 22, 2026 at 08:27 AM UTC

1 product affected across 1 vendorNextcloud/server

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Severity

MEDIUM6.8

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.12, and 32.0.0 to before 32.0.3, a missing check of a relation allowed authenticated users with access to any file comment, to read the content of all comments. It is recommended that the Nextcloud Server is upgraded to 31.0.12 or 32.0.3. It is recommended that the Nextcloud Enterprise Server is upgraded to 21.0.9.20, 22.2.10.35, 23.0.12.31, 24.0.12.30, 25.0.13.25, 26.0.13.22, 27.1.11.22, 28.0.14.13, 29.0.16.10, 30.0.17.5, 31.0.12 or 32.0.3

Affected

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

Nextcloud/server · Nextcloudnextcloud-app

95%

21.0.0 ≤ v < 21.0.9.2022.0.0 ≤ v < 22.2.10.3523.0.0 ≤ v < 23.0.12.3124.0.0 ≤ v < 24.0.12.3025.0.0 ≤ v < 25.0.13.2526.0.0 ≤ v < 26.0.13.2227.0.0 ≤ v < 27.1.11.2228.0.0 ≤ v < 28.0.14.1329.0.0 ≤ v < 29.0.16.1030.0.0 ≤ v < 30.0.17.531.0.0 ≤ v < 31.0.1232.0.0 ≤ v < 32.0.3

Affected range stops below 21.0.9.20, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.2.10.35, so it looks safe — our inference, not a vendor statement

Affected range stops below 23.0.12.31, so it looks safe — our inference, not a vendor statement

Affected range stops below 24.0.12.30, so it looks safe — our inference, not a vendor statement

Affected range stops below 25.0.13.25, so it looks safe — our inference, not a vendor statement

Affected range stops below 26.0.13.22, so it looks safe — our inference, not a vendor statement

Affected range stops below 27.1.11.22, so it looks safe — our inference, not a vendor statement

Affected range stops below 28.0.14.13, so it looks safe — our inference, not a vendor statement

Affected range stops below 29.0.16.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 30.0.17.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 31.0.12, so it looks safe — our inference, not a vendor statement

Affected range stops below 32.0.3, 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:

Patch and advisory references

References (3)

x_refsource_CONFIRMVendor Advisory

Source: cverecord

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-285v-p9x9-cjhj

x_refsource_MISCIssue TrackingPatch

Source: cverecord

https://github.com/nextcloud/server/pull/56982

x_refsource_MISCPermissions Required

Source: cverecord

https://hackerone.com/reports/3425534

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

6.8MEDIUMGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: REQUIRED
Scope: CHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-639

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