CyberSecBulletin
CVE-2026-42043NVD status: Modified

axios: Permissive List of Allowed Inputs

Published Updated By the CyberSecBulletin desk

CVE-2026-42043 is a critical-severity permissive list of allowed inputs vulnerability in axios, with a CVSS 3.1 base score of 10.0 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected axios versions: >= 1.0.0, < 1.15.1; < 0.31.1. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.71% chance of exploitation within 30 days, higher than 54% of scored CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Check which version of axios you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on github.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Axiosaxios>= 1.0.0, < 1.15.1; < 0.31.1Not stated
Red HatHawtIO HawtIO 4.4.0Not specified in the recordNot stated
Red HatRed Hat Data Grid 8.6.1Not specified in the recordNot stated
Red Hatmulticluster engine for Kubernetes 2.1Not specified in the recordNot stated
Red Hatmulticluster engine for Kubernetes 2.11Not specified in the recordNot stated
Red Hatmulticluster engine for Kubernetes 2.6Not specified in the recordNot stated
Red Hatmulticluster engine for Kubernetes 2.8Not specified in the recordNot stated
Red Hatmulticluster engine for Kubernetes 2.9Not specified in the recordNot stated
Red HatNetwork Observability (NETOBSERV) 1.11.0Not specified in the recordNot stated
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.14Not specified in the recordNot stated
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.15Not specified in the recordNot stated
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.16Not specified in the recordNot stated
Red HatRed Hat Advanced Cluster Security 4.9Not specified in the recordNot stated
Red HatRed Hat Advanced Cluster Security for Kubernetes 4.10Not specified in the recordNot stated
Red HatRed Hat Developer Hub 1.8Not specified in the recordNot stated
Red HatRed Hat Developer Hub 1.9Not specified in the recordNot stated
Red HatRed Hat Discovery 2Not specified in the recordNot stated
Red HatRed Hat Migration Toolkit 1.8Not specified in the recordNot stated
Red HatRed Hat OpenShift AI 2.25Not specified in the recordNot stated
Red HatRed Hat OpenShift Container Platform 4.20Not specified in the recordNot stated
Red HatRed Hat OpenShift Container Platform 4.21Not specified in the recordNot stated
Red HatRed Hat OpenShift Dev Spaces 3.28Not specified in the recordNot stated
Red HatRed Hat OpenShift Service Mesh 2.6Not specified in the recordNot stated
Red HatRed Hat OpenShift Service Mesh 3.0Not specified in the recordNot stated
Red HatRed Hat OpenShift Service Mesh 3.1Not specified in the recordNot stated

Version data comes from the organisation that assigned the CVE; 34 further products are omitted here. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
ChangedThe attack can reach beyond the vulnerable component into other systems.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
NoneAvailability is not affected.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.2HighCNA (github.com)
CVSS 3.110.0CriticalNVD
CVSS 3.17.2HighCNA

Official description

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, an attacker who can influence the target URL of an Axios request can use any address in the 127.0.0.0/8 range (other than 127.0.0.1) to completely bypass the NO_PROXY protection. This vulnerability is due to an incomplete for CVE-2025-62718, This vulnerability is fixed in 1.15.1 and 0.31.1.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Permissive List of Allowed Inputs

The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are explicitly allowed by policy because the inputs are assumed to be safe, but the list is too permissive - that is, it allows an input that is unsafe, leading to resultant weaknesses.

More Permissive List of Allowed Inputs vulnerabilities (CWE-183)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: poc, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in axios

All axios vulnerabilities

Recent Permissive List of Allowed Inputs vulnerabilities

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