SurrealDB before 2.2.2 CPU Exhaustion via nested FOR loops
Impact
SurrealDB before 2.2.2 allows authenticated users with OWNER or EDITOR permissions to define custom database functions via DEFINE FUNCTION using nested FOR loops, consuming all server CPU time. Affected versions include 2.2.x before 2.2.2, 2.1.x before 2.1.5, and before 2.0.5. This can render the server unresponsive to other queries and connections until manually restarted.
Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.Affected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
surrealdb · VulnCheck
surrealdb
2 ranges
surrealdb · VulnCheck
surrealdb
Package identity
pkg:cargo/surrealdbExplore surrealdb →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
2.2.0 → before 2.2.2
semver versions
unaffected
2.2.2
semver versions
Other versions: unaffected
surrealdb · VulnCheck
surrealdb
2 ranges
surrealdb · VulnCheck
surrealdb
Package identity
pkg:cargo/surrealdbExplore surrealdb →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
2.1.0 → before 2.1.5
semver versions
unaffected
2.1.5
semver versions
Other versions: unaffected
surrealdb · VulnCheck
surrealdb
2 ranges
surrealdb · VulnCheck
surrealdb
Package identity
pkg:cargo/surrealdbExplore surrealdb →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
0 → before 2.0.5
semver versions
unaffected
2.0.5
semver versions
Other versions: unaffected
Original source description
SurrealDB before 2.0.5, 2.1.x before 2.1.5, and 2.2.x before 2.2.2 allows authenticated users with OWNER or EDITOR permissions (at the root, namespace, or database level) to define custom database functions via DEFINE FUNCTION using nested FOR loops. Although a single loop's iteration count is constrained, nesting multiple loops (e.g., each with 1,000,000 iterations) is not, so an attacker can execute a function that consumes all server CPU time. Configured timeouts do not stop the execution, rendering the server unresponsive to other queries and connections until it is manually restarted.
Inside the record
Evidence available
Describes the evidence in this view, not whether the product is safe.
Original records
CVE-2025-71397View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.
cve.new JSON →Underlying weaknesses
The source’s classification of what caused the vulnerability.
Environment requirements
These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.
VulnCheck · platform conditions
Any condition may hold
Vulnerable product
cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*From (inclusive): 2.2.0
Before: 2.2.2
Vulnerable product
cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*From (inclusive): 2.1.0
Before: 2.1.5
Vulnerable product
cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*Before: 2.0.5
Original applicability statements
[
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.2.2",
"versionStartIncluding": "2.2.0"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.1.5",
"versionStartIncluding": "2.1.0"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.0.5"
}
]
}
]
}
]Contributing organizations · 2
Assigning organization
Additional data publisher
What changed
Follow changesLarge field values are marked as truncated previews. Original source snapshots remain retained.