CVE-2026-80051
graphql-go/graphql Improper Input Validation and Denial of Service Vulnerability
Description
github.com/graphql-go/graphql (GraphQL for Go) through 0.8.1 does not validate that a scalar variable value matches its declared type. The built-in coerceString and coerceBool functions (scalars.go) accept input whose type does not match the declared String, ID, or Boolean scalar instead of raising the request error that the GraphQL specification mandates. In some cases (but not any typical case of JSON sent to a website), a deeply nested value leads to an unrecoverable "fatal error: stack overflow" condition.
INFO
Published Date :
Aug. 25, 2026, 6:18 p.m.
Last Modified :
Aug. 25, 2026, 6:18 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-80051
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | 8254265b-2729-46b6-b9e3-3dfca2d5bfca | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update the graphql-go/graphql library.
- Ensure scalar inputs match declared types.
- Validate type coercion logic.
- Review GraphQL schema definitions.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-80051.
| URL | Resource |
|---|---|
| https://github.com/graphql-go/graphql/blob/v0.8.1/scalars.go#L307-L315 | |
| https://www.openwall.com/lists/oss-security/2026/08/25/2 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-80051 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-80051
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-80051 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-80051 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Aug. 25, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/graphql-go/graphql', 'vendor': 'graphql-go project', 'product': 'graphql-go', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '0.8.1'}], 'packageURL': 'pkg:golang/github.com/graphql-go/graphql', 'packageName': 'github.com/graphql-go/graphql', 'programFiles': ['scalars.go'], 'collectionURL': 'https://pkg.go.dev', 'defaultStatus': 'unknown', 'programRoutines': [{'name': 'coerceString'}, {'name': 'coerceBool'}]}] Added Description github.com/graphql-go/graphql (GraphQL for Go) through 0.8.1 does not validate that a scalar variable value matches its declared type. The built-in coerceString and coerceBool functions (scalars.go) accept input whose type does not match the declared String, ID, or Boolean scalar instead of raising the request error that the GraphQL specification mandates. In some cases (but not any typical case of JSON sent to a website), a deeply nested value leads to an unrecoverable "fatal error: stack overflow" condition. Added CVSS V4.0 AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/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 Added CWE CWE-1287 Added Reference https://github.com/graphql-go/graphql/blob/v0.8.1/scalars.go#L307-L315 Added Reference https://www.openwall.com/lists/oss-security/2026/08/25/2