Vulnerability-Lookup

GHSA-6G9V-7GQ3-P2C6

Vulnerability from github – Published: 2026-07-01 20:16 – Updated: 2026-09-04 20:07

Summary

SurrealDB: Authenticated callers can read fields hidden by field-level SELECT permissions via error messages

Details

A record user with UPDATE access could read field values that field-level SELECT permissions hid from them. Arithmetic operators and extend embedded the raw operand into their error messages, and UPDATE permission checks evaluate against the unreduced document — so triggering such an error against a hidden field returned its value in the resulting error.

Impact

A record user issues an UPDATE that performs an incompatible operation against a hidden field — e.g. UPDATE person:me SET probe = email + 1 when email is a string — and reads the value from the returned error (Tried to compute "alice@example.com" + 1 …). One field per operation, but the attacker can repeat against any field on any record they can UPDATE.

Patches

A patch has been introduced that replaces the raw operand in every try_* operator and in extend with the operand's type name ("string", "int", "array", etc.).

Versions 3.1.0 and later are not affected by this issue.

Workarounds

Affected users who are unable to update should not grant UPDATE permission on records whose field-level SELECT permissions are expected to hide values from the same caller.

Severity

4.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "surrealdb"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-63748"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-209"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-01T20:16:52Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "A record user with UPDATE access could read field values that field-level SELECT permissions hid from them. Arithmetic operators and `extend` embedded the raw operand into their error messages, and UPDATE permission checks evaluate against the unreduced document \u2014 so triggering such an error against a hidden field returned its value in the resulting error.\n\n### Impact\n\nA record user issues an UPDATE that performs an incompatible operation against a hidden field \u2014 e.g. `UPDATE person:me SET probe = email + 1` when `email` is a string \u2014 and reads the value from the returned error (`Tried to compute \"alice@example.com\" + 1 \u2026`). One field per operation, but the attacker can repeat against any field on any record they can UPDATE.\n\n### Patches\n\nA patch has been introduced that replaces the raw operand in every `try_*` operator and in `extend` with the operand\u0027s type name (`\"string\"`, `\"int\"`, `\"array\"`, etc.).\n\n- Versions 3.1.0 and later are not affected by this issue.\n\n### Workarounds\n\nAffected users who are unable to update should not grant UPDATE permission on records whose field-level SELECT permissions are expected to hide values from the same caller.",
  "id": "GHSA-6g9v-7gq3-p2c6",
  "modified": "2026-09-04T20:07:40Z",
  "published": "2026-07-01T20:16:52Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/surrealdb/surrealdb/security/advisories/GHSA-6g9v-7gq3-p2c6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63748"
    },
    {
      "type": "WEB",
      "url": "https://github.com/surrealdb/surrealdb/commit/0aaa332c79195e4c40275eb5224aed3d52f5cf90"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/surrealdb/surrealdb"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/surrealdb-before-information-disclosure-via-error-messages"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SurrealDB: Authenticated callers can read fields hidden by field-level SELECT permissions via error messages"
}

CVE-2026-63748 (GCVE-0-2026-63748)

Vulnerability from cvelistv5 – Published: 2026-07-20 12:04 – Updated: 2026-07-28 01:05

Title

SurrealDB before 3.1.0 Information Disclosure via Error Messages

Summary

SurrealDB versions before 3.1.0 contain an information disclosure vulnerability where authenticated users with UPDATE access can read field values hidden by field-level SELECT permissions through error messages. Attackers can trigger arithmetic or extend operations on hidden fields to embed raw operand values in error responses, bypassing field-level access controls.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-20 12:53 UTC

CWE

CWE-209 - Generation of Error Message Containing Sensitive Information

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/surrealdb/surrealdb/security/a…	vendor-advisory
https://www.vulncheck.com/advisories/surrealdb-be…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
surrealdb	surrealdb	Affected: 0 , < 3.1.0 (semver) Unaffected: 3.1.0 (semver) cpe:2.3:a:surrealdb:surrealdb::::::::

Date Public

2026-05-27 00:00

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.