CVE-2026-63735: SurrealDB versions before 3.2.0 fail to validate namespace and database scope in custom API routes, allowing a

Q: How do I fix CVE-2026-63735?

surrealdb: upgrade to 3.2.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-63735 being exploited?

CVE-2026-63735 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-63735 affect?

CVE-2026-63735 affects surrealdb. Severity is high (CVSS 8.1). SurrealDB versions before 3.2.0 fail to validate namespace and database scope in custom API routes, allowing authenticated users to invoke endpoints in different namespaces/databases. Attackers with valid credentials for any namespace/datab

Routine

HIGH 8.1UPGRADE

CVE-2026-63735 is a high-severity flaw (CVSS 8.1) affecting surrealdb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SurrealDB versions before 3.2.0 fail to validate namespace and database scope in custom API routes, allowing authenticated users to invoke endpoints in different namespaces/databases. Attackers with valid credentials for any namespace/database can access custom API endpoints in other tenants by specifying the target scope in the URL path, reading sensitive data or triggering unintended operations.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-639
Published	2026-07-20
Last modified	2026-07-23

Publisher (CNA): VulnCheck · Vendor: surrealdb

Last updated 2026-07-23 · 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
2026-07-23 20:17 UTCUpdated Record last modified

surrealdb surrealdb UPGRADE

Affected: < 3.2.0

Fixed in: 3.2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.2.0 (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.

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-2026-63735?

surrealdb: upgrade to 3.2.0. Exact commands for each OS are on this page.

Is CVE-2026-63735 being exploited?

CVE-2026-63735 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-2026-63735 affect?

CVE-2026-63735 affects surrealdb. Severity is high (CVSS 8.1). SurrealDB versions before 3.2.0 fail to validate namespace and database scope in custom API routes, allowing authenticated users to invoke endpoints in different namespaces/databases. Attackers with valid credentials for any namespace/datab

How urgent is CVE-2026-63735?

Priority 36/100. High severity

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References

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