Axios: DoS & Header Injection via Prototype Pollution Read-Side Gadgets in axios merge functions
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- Partial Red Hat: 35 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat.
Summary
Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, axios exposes two read-side prototype-pollution gadgets. When Object.prototype is polluted by an upstream dependency in the same process (e.g. lodash _.merge / CVE-2018-16487), axios silently picks up the polluted values. (1) lib/utils.js line 406 builds merge()'s accumulator as result = {}, so result[targetKey] (line 414) walks Object.prototype and the polluted bucket's own keys are copied into the merged headers and ride out on the wire. (2) lib/core/mergeConfig.js line 26 builds the hasOwnProperty descriptor as a plain-object literal. Object.defineProperty reads descriptor.get/descriptor.set via the prototype chain, so a polluted Object.prototype.get or Object.prototype.set makes the call throw TypeError synchronously on every axios request. This vulnerability is fixed in 0.32.0 and 1.16.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- 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 |
|---|---|---|---|---|---|
| axios | axios | 1.0.0 to before 1.16.0; before 0.32.0 | 1.16.0, 0.32.0 | Patch available | CNA |
| — | axios (npm) | 1.0.0 to before 1.16.0 | 1.16.0 | Patch available | GHSA-898c-q2cr-xwhg |
| — | axios (npm) | before 0.32.0 | 0.32.0 | Patch available | GHSA-898c-q2cr-xwhg |
- axios Vendoraxios Affected 1.0.0 to before 1.16.0; before 0.32.0 Fixed in 1.16.0, 0.32.0 Patch available CNA
- axios (npm) Vendor— Affected 1.0.0 to before 1.16.0 Fixed in 1.16.0 Patch available GHSA-898c-q2cr-xwhg
- axios (npm) Vendor— Affected before 0.32.0 Fixed in 0.32.0 Patch available GHSA-898c-q2cr-xwhg
Remediation
- Fix · CNA axios (axios) Fixed in 1.16.0, 0.32.0
- Fix · GHSA-898c-q2cr-xwhg axios (npm) Fixed in 1.16.0 Advisory →
- Fix · GHSA-898c-q2cr-xwhg axios (npm) Fixed in 0.32.0 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Cryostat 4 | Affected | No fix yet: Fix deferred |
| Gatekeeper 3 | Affected | No fix yet: Fix deferred |
| Migration Toolkit for Applications 8 | Affected | No fix yet: Fix deferred |
| Migration Toolkit for Containers | Affected | No fix yet: Fix deferred |
| Multicluster Engine for Kubernetes | Affected | No fix yet: Fix deferred |
| Network Observability Operator | Affected | No fix yet: Fix deferred |
| OpenShift Pipelines | Affected | No fix yet: Fix deferred |
| OpenShift Service Mesh 2 | Affected | No fix yet: Fix deferred |
| OpenShift Service Mesh 3 | Affected | No fix yet: Fix deferred |
| Red Hat 3scale API Management Platform 2 | Affected | No fix yet: Fix deferred |
| Red Hat AMQ Broker 7 | Affected | No fix yet: Fix deferred |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet: Fix deferred |
| Red Hat Advanced Cluster Security 4 | Affected | No fix yet: Fix deferred |
| Red Hat Ansible Automation Platform 2 | Affected | No fix yet: Fix deferred |
| Red Hat Build of Podman Desktop - Tech Preview | Affected | No fix yet: Fix deferred |
| Red Hat Data Grid 8 | Affected | No fix yet: Fix deferred |
| Red Hat Developer Hub 1 | Affected | No fix yet: Fix deferred |
| Red Hat Discovery 2 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AI (RHEL AI) 3 | Affected | No fix yet: Fix deferred |
| Red Hat Fuse 7 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift AI (RHOAI) | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Dev Spaces | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Virtualization 4 | Affected | No fix yet: Fix deferred |
| Red Hat Quay 3 | Affected | No fix yet: Fix deferred |
| Red Hat Satellite 6 | Affected | No fix yet: Fix deferred |
| Red Hat Trusted Artifact Signer | Affected | No fix yet: Fix deferred |
| Red Hat Trusted Profile Analyzer | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel - HawtIO 4 | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel for Spring Boot 4 | Affected | No fix yet: Fix deferred |
| Red Hat build of Apicurio Registry 3 | Affected | No fix yet: Fix deferred |
| Self-service automation portal 2 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-44490
- 2026-10-03 Alias added: GHSA-898c-q2cr-xwhg
- 2026-10-27 Affected versions changed · Red Hat
- 2026-10-30 Affected versions changed · Red Hat
References
More Axios vulnerabilities
- TI-2026-30422 Server-side request forgery in axios CVSS 3.1CRITICAL 10.0
- TI-2026-32427 Server-side request forgery in axios CVSS 3.1HIGH 8.6
- TI-2026-30578 Axios: Prototype pollution read-side gadgets in HTTP adapter allow credential injection and request hijacking CVSS 3.1CRITICAL 9.1
- TI-2026-32428 Axios: Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy` CVSS 3.1HIGH 8.7
- TI-2025-20009 Possible SSRF and Credential Leakage via Absolute URL in axios Requests CVSS 4.0HIGH 7.7
- TI-2026-32430 Axios: Regular Expression Denial of Service (ReDoS) via Cookie Name Injection CVSS 3.1HIGH 7.5
Sources
- CVE-2026-44490 · CVE Program
- CVE-2026-44490 · NVD
- FIRST EPSS
- GHSA-898c-q2cr-xwhg · GitHub Advisory Database · CC BY 4.0
- CVE-2026-44490 · Red Hat security data · CC BY 4.0
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