SurrealDB 3.1.0 before 3.3.0 contains a server-side request forgery vulnerability in network-capability matching
Source GCVE Database
Not known to be exploited · CVSS 5.3 Medium : upgrade to 3.3.0 when convenient.
Data as of 3 Nov 2026, 16:29 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 5.3 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 4.3 |
- Patch
- Available – fixed in 3.3.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:LExploitation evidence
Disclosed: evidence found.
CVE published 3 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.
What to do
Upgrade surrealdb to 3.3.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| surrealdbsurrealdb | Affected
| Fixed in
|
crates.iosurrealdbpkg:cargo/surrealdbOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
The vulnerability affects SurrealDB versions before 3.3.0. Users should upgrade to version 3.3.0 or later where this issue is fixed. No other mitigation steps are indicated.
Description
SurrealDB versions 3.1.0 up to but not including 3.3.0 contain a server-side request forgery (SSRF) vulnerability in the network-capability matching logic. The issue arises because port-specific deny-net rules match only literal host strings, while the resolved IP check ignores the port, allowing authenticated users to bypass restrictions and access blocked internal services via crafted http::* function calls.
References
- github.com/surrealdb/surrealdb/security/advisories/GHSA-mhv5-88p6-w4c3 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-121421 (opens in a new tab)
- github.com/surrealdb/surrealdb/commit/9d9a5b0693e499e0d030cac6b618062ec02cd2bc (opens in a new tab)
- vulncheck.com/advisories/surrealdb-3.1.0-before-3.3.0-ssrf-via-port-specific-deny-net-host-aliasing-bypass (opens in a new tab)