SEPTEMBER 18, 2026
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Case File

CVE-2026-76763

HIGH · CVSS 7.5 EPSS 0.35% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-31 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

A vulnerability in SmallRye GraphQL allows unauthenticated remote attackers to exploit improper validation of float or string inputs during number scalar coercion for BigInteger. This can lead to the creation of excessively large BigInteger objects, potentially causing CPU exhaustion or OutOfMemoryError, resulting in denial of service. Organizations using SmallRye GraphQL should prioritize remediation to mitigate the risk of service disruption.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-76763
Severity
HIGH
CVSS
7.5
EPSS
0.35%

Original NVD 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.