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Public proof of conceptFix available

CVE-2026-42033

A public proof of concept exists; no exploitation attested.

  • Published2026-04-24
  • Fixed in1.15.1 · 0.31.1
  • WeaknessCWE-1321 · CWE-915

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, when Object.prototype has been polluted by any co-dependency with keys that axios reads without a hasOwnProperty guard, an attacker can (a) silently intercept and modify every JSON response before the application sees it, or (b) fully hijack the underlying HTTP transport, gaining access to request credentials, headers, and body. The precondition is prototype pollution from a separate source in the same process. This vulnerability is fixed in 1.15.1 and 0.31.1.

Timeline

dates in UTC
  1. 2026-04-2418:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-42033?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-42033?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Axios
BranchAffectedFixed in
1.x≥ 1.0.0, < 1.15.11.15.1
0.31< 0.31.10.31.1

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • RHSA-2026:86618 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: New container image: rhceph-9.2

  • RHSA-2026:36882 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Red Hat Advanced Cluster Management for Kubernetes v2.14.3 security update

  • RHSA-2026:25273 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Red Hat Advanced Cluster Management for Kubernetes v2.16.2 security update

  • RHSA-2026:25271 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: multicluster engine for Kubernetes v2.11.0 General Availability

  • RHSA-2026:25089 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: HawtIO 4.4.0 for Red Hat build of Apache Camel 4 Release and security update.

  • RHSA-2026:24977 Red Hat Product Security8 products fixed

    Red Hat Security Advisory: RHOAI 2.25.7 - Red Hat OpenShift AI

25 more advisories

Full record on NVD

Fix

  1. Update Axios to 1.15.1 · 0.31.1
  2. Vendor fix Red Hat Product Security RHSA-2026:86618 · 4 productsThe container images provided by this update can be downloaded from the Red Hat container registry at registry.redhat.io using the "podman pull" command.
  3. Vendor fix Red Hat Product Security RHSA-2026:36882 · 4 productsBefore you apply this update, make sure all previously released errata that are relevant to your system are applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  4. Vendor fix Red Hat Product Security RHSA-2026:25271 · 4 productsFor multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.16/html/clusters/cluster_mce_overview#mce-install-intro
  5. Vendor fix Red Hat Product Security RHSA-2026:25089 · 1 productBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  6. Vendor fix Red Hat Product Security RHSA-2026:24977 · 8 productsFor Red Hat OpenShift AI 2.25.7 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
  7. Vendor fix Red Hat Product Security RHSA-2026:24853 · 3 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2026-04-24
  • OpenCVESSVC decisionpoc—
  • CNACVSS 3.17.4read 2026-10-23
  • CNAweakness (CWE)CWE-1321, CWE-915read 2026-10-23
  • FIRST EPSSEPSS score0.9 %2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
2026-04-24
Last Modified
2026-09-10
NVD status
Modified

Frequently asked questions

What is CVE-2026-42033?

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, when Object.prototype has been polluted by any co-dependency with keys that axios reads without a hasOwnProperty guard, an attacker can (a) silently intercept and modify every JSON response before the application sees it, or (b) fully hijack the underlying HTTP transport, gaining access to request credentials, headers, and body. The precondition is prototype pollution from a separate source in the same process. This vulnerability is fixed in 1.15.1 and 0.31.1.

Is CVE-2026-42033 actively exploited?

A proof-of-concept exploit exists for CVE-2026-42033, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-42033?

CVE-2026-42033 has a CVSS v3 base score of 7.4 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

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