CVE-2026-63738: SurrealDB versions 3.1.0 before 3.1.5 fail to enforce field-level SELECT permissions when records are accessed

Routine

MEDIUM 4.3UPGRADE

CVE-2026-63738 is a medium-severity flaw (CVSS 4.3) affecting surrealdb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SurrealDB versions 3.1.0 before 3.1.5 fail to enforce field-level SELECT permissions when records are accessed through graph-edge or back-reference traversals. Attackers with table-level SELECT access can read field values hidden by field-level permissions by materializing records through graph traversals instead of direct table scans.

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	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-863
Published	2026-07-20
Last modified	2026-07-22

Publisher (CNA): VulnCheck · Vendor: surrealdb

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

Am I affected?

Timeline

2026-07-20 12:19 UTCPublished CVE record published
2026-07-22 15:49 UTCUpdated Record last modified

surrealdb surrealdb UPGRADE

Affected: >= 3.1.0 and < 3.1.5

Fixed in: 3.1.5

Safe to downgrade to: a release before 3.1.0

1. Check installed version

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

2. UPGRADE to 3.1.5 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade surrealdb

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 3.1.0 (Debian / Ubuntu)

apt-cache madison surrealdb sudo apt install surrealdb=<VERSION_BEFORE_3.1.0> sudo apt-mark hold surrealdb

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

dnf --showduplicates list surrealdb sudo dnf downgrade surrealdb-<VERSION_BEFORE_3.1.0> sudo dnf versionlock add surrealdb

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-2026-63738?

surrealdb: upgrade to 3.1.5. Exact commands for each OS are on this page.

Is CVE-2026-63738 being exploited?

CVE-2026-63738 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-2026-63738 affect?

CVE-2026-63738 affects surrealdb. Severity is medium (CVSS 4.3). SurrealDB versions 3.1.0 before 3.1.5 fail to enforce field-level SELECT permissions when records are accessed through graph-edge or back-reference traversals. Attackers with table-level SELECT access can read field values hidden by field-l

How urgent is CVE-2026-63738?

Priority 20/100. No elevated risk signals yet.

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References

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