CVE-2026-63748Network attack vector

Authenticated field disclosure via raw error operands

Published Jul 20, 2026 · Updated Jul 20, 2026

Information disclosure in SurrealDB before 3.1.0 allows remote authenticated users with UPDATE access to read SELECT-hidden field values. Arithmetic operators and extend place raw hidden-field operands in type-error responses because UPDATE checks evaluate the unreduced record. The caller needs UPDATE access to the target record, and each operation discloses one field value without altering integrity or availability.

CVSS severity5.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in SurrealDB before 3.1.0 allows remote authenticated users with UPDATE access to read SELECT-hidden field values. Arithmetic operators and extend place raw hidden-field operands in type-error responses because UPDATE checks evaluate the unreduced record. The caller needs UPDATE access to the target record, and each operation discloses one field value without altering integrity or availability.

The record

CVE
CVE-2026-63748
Published
Jul 20, 2026
Updated
Jul 20, 2026
Vendor
SurrealDB
Product
SurrealDB
Classifications
CWE-209, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SurrealDB · SurrealDBversion=0 <3.1.0

Published CVSS scores

5.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.3VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-209Generation of Error Message Containing Sensitive Information
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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