CVE-2026-45544: Nextcloud is an open source content collaboration platform

Routine

MEDIUM 4.3UPGRADE

CVE-2026-45544 is a medium-severity flaw (CVSS 4.3) affecting tables. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Nextcloud is an open source content collaboration platform. From version 0.8.0 to before version 1.0.4, the view filter criteria is exposed to users with read-only permissions in Nextcloud Tables. This issue has been patched in versions 1.0.4 and 2.0.0.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-1230
Published	2026-06-01
Last modified	2026-07-22

Publisher (CNA): GitHub, Inc. · Vendor: nextcloud

Last updated 2026-07-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-01 19:16 UTCPublished CVE record published
2026-07-22 08:10 UTCUpdated Record last modified

nextcloud tables UPGRADE

Affected: >= 0.8.0 and < 1.0.4

Fixed in: 1.0.4

Safe to downgrade to: a release before 0.8.0

1. Check installed version

apt-cache policy tables || rpm -q tables || tables --version

2. UPGRADE to 1.0.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade tables

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade tables

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.8.0 (Debian / Ubuntu)

apt-cache madison tables sudo apt install tables=<VERSION_BEFORE_0.8.0> sudo apt-mark hold tables

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list tables sudo dnf downgrade tables-<VERSION_BEFORE_0.8.0> sudo dnf versionlock add tables

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-45544?

tables: upgrade to 1.0.4. Exact commands for each OS are on this page.

Is CVE-2026-45544 being exploited?

CVE-2026-45544 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-45544 affect?

CVE-2026-45544 affects tables. Severity is medium (CVSS 4.3). Nextcloud is an open source content collaboration platform. From version 0.8.0 to before version 1.0.4, the view filter criteria is exposed to users with read-only permissions in Nextcloud Tables. This issue has been patched in versions 1.0

How urgent is CVE-2026-45544?

Priority 18/100. No elevated risk signals yet.

Software pages

Nextcloud vulnerabilities

Related CVEs

CVE-2026-82983 LOW 3.3 UPGRADE The Tables app's share-listing endpoint (GET /apps/tables/share/table/{tableId}) did not verify that the reque
CVE-2026-82986 MEDIUM 4.6 UPGRADE The user in a group can bypass the group restriction set by an administrator on link sharing, creating share l
CVE-2026-45545 HIGH 8.2 UPGRADE Nextcloud is an open source content collaboration platform
CVE-2026-45722 HIGH 7.1 UPGRADE Nextcloud is an open source content collaboration platform

References

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