CVE-2026-63757: SurrealDB versions before 3.1.0 contain a session hijacking vulnerability where the HTTP /rpc sessions method

Q: How do I fix CVE-2026-63757?

surrealdb: upgrade to 3.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-63757 being exploited?

CVE-2026-63757 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-2026-63757 affect?

CVE-2026-63757 affects surrealdb. Severity is high (CVSS 8.8). SurrealDB versions before 3.1.0 contain a session hijacking vulnerability where the HTTP /rpc sessions method returns attached session UUIDs without authentication and accepts arbitrary session fields with no ownership verification. Unauthe

This month

HIGH 8.8UPGRADE

CVE-2026-63757 is a high-severity flaw (CVSS 8.8) affecting surrealdb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SurrealDB versions before 3.1.0 contain a session hijacking vulnerability where the HTTP /rpc sessions method returns attached session UUIDs without authentication and accepts arbitrary session fields with no ownership verification. Unauthenticated attackers can enumerate session UUIDs and impersonate authenticated sessions to read, write, delete data and escalate privileges.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-306
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 15:17 UTCUpdated Record last modified

surrealdb surrealdb UPGRADE

Affected: < 3.1.0

Fixed in: 3.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.1.0 (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-2026-63757?

surrealdb: upgrade to 3.1.0. Exact commands for each OS are on this page.

Is CVE-2026-63757 being exploited?

CVE-2026-63757 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-2026-63757 affect?

CVE-2026-63757 affects surrealdb. Severity is high (CVSS 8.8). SurrealDB versions before 3.1.0 contain a session hijacking vulnerability where the HTTP /rpc sessions method returns attached session UUIDs without authentication and accepts arbitrary session fields with no ownership verification. Unauthe

How urgent is CVE-2026-63757?

Priority 42/100. High severity

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References

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