CVE-2026-63743 json
SurrealDB before 3.1.0 Port-Specific Deny Rule Bypass via HTTP Redirect
published 4mo ago modified 2mo ago also GHSA-97vg-427p-8hx5 , EUVD-2026-45914
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
SurrealDB before 3.1.0 contains a capability bypass vulnerability in HTTP redirect handling that allows authenticated users to circumvent port-scoped --deny-net rules. Attackers can chain an HTTP redirect from an allowed hostname to a denied host:port combination, and the redirect is followed because the port information is dropped during redirect policy evaluation.
Patch / fix
- crates.io surrealdb 3.1.0
- surrealdb surrealdb 3.1.0
Is CVE-2026-63743 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
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N |
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/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 |
| GitHub | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | surrealdb | <3.1.0 |
3.1.0 |
Affected products
- surrealdb surrealdb
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/surrealdb/surrealdb/commit/https://github.com/surrealdb/surrealdb/commit/ceb1ca3a1
web
-
github.com
/surrealdb/surrealdb/security/advisories/GHSA-97vg-427p-8hx5
vendor-advisory, web, mitigation
-
vulncheck.com
/advisories/surrealdb-before-port-specific-deny-rule-bypass-via-http-redirect
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-63743
advisory
-
github.com
/surrealdb/surrealdb
package
Sources
- CVE List CVE-2026-63743
- GitHub Advisory GHSA-97vg-427p-8hx5
- NVD CVE-2026-63743
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