CVE-2025-71395 json
SurrealDB before 2.2.2 Memory Exhaustion via string::replace
published last yr. modified 11d ago also GHSA-3633-g6mg-p6qq , EUVD-2025-210486
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
SurrealDB versions before 2.2.2 contain a memory exhaustion vulnerability in the string::replace function that fails to restrict resulting string length when using regex patterns. An authenticated attacker can craft a malicious query to exhaust server memory through unbounded string allocations, causing denial of service.
Patch / fix
- crates.io surrealdb 2.0.5, 2.1.5, 2.2.2
- surrealdb surrealdb 2.0.5, 2.1.5, 2.2.2
- github.com/surrealdb/surrealdb#5619 pull request
- github.com/surrealdb/surrealdb#5638 pull request
Is CVE-2025-71395 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3mo ago
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/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 |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | surrealdb | >=2.2.0, <2.2.2 >=2.1.0, <2.1.5 <2.0.5 |
2.2.2 2.1.5 2.0.5 |
Affected products
- surrealdb surrealdb
Classification
- Weakness
-
- CWE-789 Memory Allocation with Excessive Size Value
References
-
github.com
/surrealdb/surrealdb/pull/5619
web
-
github.com
/surrealdb/surrealdb/pull/5638
web
-
github.com
/surrealdb/surrealdb/security/advisories/GHSA-3633-g6mg-p6qq
vendor-advisory, web
-
vulncheck.com
/advisories/surrealdb-before-memory-exhaustion-via-string-replace
third-party-advisory
-
github.com
/surrealdb/surrealdb
package
Sources
- CVE List CVE-2025-71395
- GitHub Advisory GHSA-3633-g6mg-p6qq
- NVD CVE-2025-71395
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