CVEvulnerability
CVE-2026-76763
7.5 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-08-31
- Last modified
- 2026-10-20
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-1284
Description
A flaw was found in SmallRye GraphQL. The number scalar coercion for BigInteger does not properly validate the magnitude of float or string inputs. An unauthenticated remote attacker can exploit this by sending a GraphQL query containing a large exponent float literal. This can lead to the allocation of extremely large BigInteger objects, causing CPU exhaustion or an OutOfMemoryError, resulting in a denial of service.
Related
Weakness · CWE (1)
- CWE-1284 Improper Validation of Specified Quantity in Input weakness
References
- https://access.redhat.com/errata/RHSA-2026:62515 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:62555 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-76763 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2519767 bugzilla.redhat.com