NULL pointer dereference in getkin kin-openapi
Priority HIGH 72CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 5 fixed, 16 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-476.
Summary
kin-openapi is a Go project for handling OpenAPI files. From 0.10.0 until 0.141.0, openapi3filter.convertParseError in openapi3filter/validation_error_encoder.go dereferences e.Parameter.In without checking whether e.Parameter is nil. A malformed non-string scalar field in a multipart/form-data request body produces a nested ParseError with a nil RequestError.Parameter, and applications that render the validation error through openapi3filter.ConvertErrors or ValidationErrorEncoder panic. An unauthenticated client can repeatedly send such requests to deny service when the application lacks a recovery boundary. JSON request bodies and applications that do not use these error-rendering helpers are not affected. This issue is fixed in version 0.141.0.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00609 49th percentileScored 2026-11-07
Fix Partial kin-openapi (getkin): 0.141.0github.com/getkin/kin-openapi (Go): 0.141.0Red Hat: 5 advisoriesRed Hat: 5 fixed, 16 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| getkin | kin-openapi | 0.10.0 to before 0.141.0 | 0.141.0 | Patch available | CNA |
| — | github.com/getkin/kin-openapi (Go) | 0.10.0 to before 0.141.0 | 0.141.0 | Patch available | GHSA-mmfr-pmjx-hw9w |
- kin-openapi Vendorgetkin Affected 0.10.0 to before 0.141.0 Fixed in 0.141.0 Patch available CNA
- github.com/getkin/kin-openapi (Go) Vendor— Affected 0.10.0 to before 0.141.0 Fixed in 0.141.0 Patch available GHSA-mmfr-pmjx-hw9w
Remediation
- Fix · CNA kin-openapi (getkin) Fixed in 0.141.0
- Fix · GHSA-mmfr-pmjx-hw9w github.com/getkin/kin-openapi (Go) Fixed in 0.141.0 Advisory →
Red Hat 5 advisories
- RHSA-2026:95517 Released 2026-11-05 · Red Hat rating ImportantMulticluster Global Hub 1.7.4 security update
- Multicluster Global Hub 1.7.4 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +1
- RHSA-2026:87410 Released 2026-10-21 · Red Hat rating CriticalRHOAI 2.25.12 - Red Hat OpenShift AI
- Red Hat OpenShift AI 2.25 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-caikit-nlp-rhel9, registry.redhat.io/rhoai/odh-codeflare-operator-rhel9 +47
- RHSA-2026:86891 Released 2026-10-21 · Red Hat rating CriticalRHOAI 3.5.2 - Red Hat OpenShift AI
- Red Hat OpenShift AI 3.5 registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-cli-rhel9 +47
Show 2 more Red Hat advisories
- RHSA-2026:84734 Released 2026-10-19 · Red Hat rating CriticalRHOAI 3.4.5 - Red Hat OpenShift AI
- Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-ai-gateway-payload-processing-rhel9, registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-autorag-rhel9 +47
- RHSA-2026:82315 Released 2026-10-13 · Red Hat rating ImportantMigration Toolkit for Applications
- Red Hat Migration Toolkit for Applications 8.2 registry.redhat.io/mta/mta-cli-rhel9, registry.redhat.io/mta/mta-hub-rhel9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Serverless | Affected | No fix yet |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 5 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 6 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 7 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 8 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 9 | Affected | No fix yet: Fix deferred |
| Red Hat Edge Manager 1 | Affected | No fix yet |
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift AI (RHOAI) | Affected | No fix yet |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet |
| Red Hat OpenShift GitOps | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 18.0 | Affected | No fix yet: Fix deferred |
| Red Hat Service Interconnect 2 | Affected | No fix yet |
| Multicluster Global Hub 1.7.4 | Fixed | RHSA-2026:95517 |
| Red Hat Migration Toolkit for Applications 8.2 | Fixed | RHSA-2026:82315 |
| Red Hat OpenShift AI 2.25 | Fixed | RHSA-2026:87410 |
| Red Hat OpenShift AI 3.4 | Fixed | RHSA-2026:84734 |
| Red Hat OpenShift AI 3.5 | Fixed | RHSA-2026:86891 |
Not affected: 18 products
- Migration Toolkit for Applications 8
- Multicluster Engine for Kubernetes
- Multicluster Global Hub 1.7.4
- OpenShift Serverless
- Red Hat 3scale API Management Platform 2
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat Edge Manager 1
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Hardened Images
- Red Hat Migration Toolkit for Applications 8.2
- Red Hat OpenShift AI (RHOAI)
- Red Hat OpenShift AI 2.25
- Red Hat OpenShift AI 3.4
- Red Hat OpenShift AI 3.5
- Red Hat OpenShift Container Platform 4
- Red Hat Service Interconnect 2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-76905
- 2026-10-03 Alias added: GHSA-mmfr-pmjx-hw9w
- 2026-10-14 Fix available: RHSA-2026:82315 · Red Hat
- 2026-10-15 Fix available: Red Hat Migration Toolkit for Applications 8.2 · Red Hat
- 2026-10-18 Affected versions changed · Red Hat
- 2026-10-20 Fix available: RHSA-2026:84734 · Red Hat
- 2026-10-20 Fix available: Red Hat OpenShift AI 3.4 · Red Hat
- 2026-10-22 Fix available: RHSA-2026:86891 · Red Hat
- 2026-10-22 Fix available: RHSA-2026:87410 · Red Hat
- 2026-10-23 Fix available: Red Hat OpenShift AI 2.25, Red Hat OpenShift AI 3.5 · Red Hat
- 2026-10-30 Affected versions changed · Red Hat
- 2026-10-31 Affected versions changed · Red Hat
- 2026-11-06 Fix available: Multicluster Global Hub 1.7.4 · Red Hat
- 2026-11-06 Fix available: RHSA-2026:95517 · Red Hat
References
More getkin vulnerabilities
- TI-2026-51613 kin-openapi: ValidationHandler.Load() Fail-Open Authentication Bypass via NoopAuthenticationFunc Default CVSS 3.1CRITICAL 9.1
- TI-2026-53976 kin-openapi: Uncontrolled resource consumption in openapi3filter deepObject query parameter decoding CVSS 4.0HIGH 8.7
- TI-2026-74664 Nil pointer panic in kin-openapi openapi3filter decoding CVSS 3.1HIGH 7.5
- TI-2026-74663 YAML NaN and Inf values cause panic in kin-openapi validation CVSS 3.1HIGH 7.5
- TI-2026-74661 kin-openapi nil pointer panic in openapi3filter on array schemas without items CVSS 3.1HIGH 7.5
- TI-2026-74657 Uncontrolled recursion in kin-openapi crashes the process CVSS 3.1HIGH 7.5
Sources
- CVE-2026-76905 · CVE Program
- CVE-2026-76905 · NVD
- FIRST EPSS
- GHSA-mmfr-pmjx-hw9w · GitHub Advisory Database · CC BY 4.0
- CVE-2026-76905 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences