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CVE-2026-42033

Axios vulnerability

7.4 HIGHPublic exploitEPSS 0.92%
  1. Published24 Apr 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Axios≥ 1.0.0 < 1.15.1 · < 0.31.1

Remediation

Fixed in
Axios≥ 1.15.1

References

and 31 more references

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Frequently asked

Is CVE-2026-42033 being actively exploited?

CVE-2026-42033 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.92%.

How severe is CVE-2026-42033?

CVE-2026-42033 has a CVSS 3.1 base score of 7.4, rated high. EPSS estimates a 0.92% probability of exploitation.

Which products are affected by CVE-2026-42033?

Affected products include Axios.

How do I fix CVE-2026-42033?

Upgrade affected software to a fixed version, for example Axios 1.15.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-42033 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.