CVE-2026-109338SurrealDB before 3.3.0 Denial of Service via Headers Non-ASCII Values
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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SurrealDB before 3.3.0 contains a denial of service vulnerability that allows query-capable users to crash the server by reading non-ASCII header values in embedded JavaScript. Attackers with scripting enabled can read such values via Headers get(), entries(), values(), or getSetCookie(), or return them from fetch() endpoints, aborting the server process.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-248
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 13, 2026
- First seen by InfoSec Signals
- Oct 12, 2026
Affected products
surrealdb surrealdb surrealdb:surrealdb (from the name) | before 3.3.0; 3.3.0 not affected | CNA record |
References
- https://github.com/surrealdb/surrealdb/security/advisories/GHSA-84w9-87hm-mxqxvendor-advisory
- https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-denial-of-service-via-headers-non-ascii-valuesthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.