Io.smallrye/smallrye-graphql: smallrye graphql: unauthenticated denial of service via large exponent float literals
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.
CVE-2026-76763
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-76763
Red Hat build of Quarkus 3.27.5.SP1
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Red Hat build of Quarkus 3.33.3.SP1
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:/a:redhat:quarkus:3.27"
],
"vendor": "Red Hat",
"product": "Red Hat build of Quarkus 3.27.5.SP1",
"versions": [
{
"status": "unaffected",
"version": "2.14.2.redhat-00002",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "io.smallrye/smallrye-graphql",
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:quarkus:3.33"
],
"vendor": "Red Hat",
"product": "Red Hat build of Quarkus 3.33.3.SP1",
"versions": [
{
"status": "unaffected",
"version": "2.17.0.redhat-00003",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "io.smallrye/smallrye-graphql",
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-76763
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #42126 · Revision 1
- Added to Heist Feed
- Publisher date