GHSA-m7rc-8w7m-r9qrPublished

SurrealDB before 2.2.2 Memory Exhaustion via Nested Functions

Collected exploitation and prediction evidence

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

cve-program · CVE-2025-71393

Published

SurrealDB before 2.2.2 with scripting enabled fails to properly enforce recursion limits when native functions contain embedded JavaScript that issues new queries. Authenticated attackers can bypass the recursion limit by chaining native and JavaScript function calls to trigger infinite recursion and exhaust server memory.

Source published: 18 Jul 2026 13:10:12 UTC
Source modified: 29 Oct 2026 21:15:20 UTC
Observed here: 29 Oct 2026 22:48:55 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · 6.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

euvd · EUVD-2025-210484

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Jul 18, 2026, 1:10:12 PM

dateUpdated: Oct 29, 2026, 9:15:20 PM

Source published: Jul 18, 2026, 1:10:12 PM (timezone not stated)
Source modified: Oct 29, 2026, 9:15:20 PM (timezone not stated)
Observed here: 7 Nov 2026 03:34:35 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 4.0 · 6.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

nvd · CVE-2025-71393

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-674

Original publisher date fields

published: 2026-07-18T14:17:10.703

lastModified: 2026-10-29T21:17:05.927

1 source CPE criteria · context only

cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 18 Jul 2026 14:17:10 UTC
Source modified: 29 Oct 2026 21:17:05 UTC
Observed here: 31 Oct 2026 06:45:43 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · [email protected] · Secondary · 6.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS 3.1 · [email protected] · Primary · 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

osv · GHSA-m7rc-8w7m-r9qr

Published

In order to prevent DoS situations due to infinite recursions, SurrealDB implements a limit of nested calls for both native functions and embedded JavaScript functions. However, in SurrealDB instances with embedded scripting functions enabled, it was found that this limit can be circumvented by utilizing both at the same time. If a native function contains JavaScript which issues a new query that calls that function, the recursion limit is not triggered. Once executed, SurrealDB will follow the path of infinite recursions until the system runs out of memory, prior to the recursion limit being triggered. This vulnerability can only affect SurrealDB servers explicitly enabling the scripting capability with `--allow-scripting` or `--allow-all` and equivalent environment variables `SURREAL_CAPS_ALLOW_SCRIPT=true` and `SURREAL_CAPS_ALLOW_ALL=true`. This issue was discovered and patched during an code audit and penetration test of SurrealDB by cure53, the severity defined within cure53's preliminary finding is Medium, matched by our CVSS v4 assessment. ### Impact For SurrealDB instances with embedded scripting functions enabled, this attack could be used to perform a DoS attack on the server by an authenticated user. ### Patches A patch has been created that further limits scripting function call limit recursion depth and disallows multiple calls to `surreadb.query()` to run in parallel in a scripting function. - Versions 2.0.5, 2.1.5, 2.2.2 and later are not affected by this issue. ### Workarounds Deny execution of embedded scripting functions through the configuration of [capabilities](https://surrealdb.com/docs/surrealdb/security/capabilities#capabilities) by starting SurrealDB with the `--deny-scripting` flag or the equivalent environment variable `SURREAL_CAPS_DENY_SCRIPT=true`. This has a usability implication, although scripting functions are disabled by default. ### References [SurrealDB Documentation - Capabilities](https://surrealdb.com/docs/surrealdb/security/capabilities) [SurrealQL Documentation - Scripting Functions](https://surrealdb.com/docs/surrealql/functions/script)

Source published: 10 Apr 2025 21:07:44 UTC
Source modified: 19 Jul 2026 03:56:47 UTC
Observed here: 24 Oct 2026 13:19:54 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V4 · CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Publisher rating · MODERATE