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CVE-2026-44494

Axios vulnerability

8.7 HIGHPublic exploitEPSS 0.93%
  1. Published11 Jun 2026

Description

Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.16.0, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into a full Man-in-the-Middle (MITM) attack — intercepting, reading, and modifying all HTTP traffic including authentication credentials. The HTTP adapter at lib/adapters/http.js:670 reads config.proxy via standard property access, which traverses the prototype chain. Because proxy is not present in Axios defaults, the merged config object has no own proxy property, making it trivially injectable via prototype pollution. Once injected, setProxy() routes all HTTP requests through the attacker's proxy server. This vulnerability is fixed in 1.16.0.

CVSS 3.1 breakdown

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

Affected products

Axios≥ 1.0.0 < 1.16.0

Remediation

Fixed in
Axios≥ 1.16.0

References

and 44 more references

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Frequently asked

Is CVE-2026-44494 being actively exploited?

CVE-2026-44494 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.93%.

How severe is CVE-2026-44494?

CVE-2026-44494 has a CVSS 3.1 base score of 8.7, rated high. EPSS estimates a 0.93% probability of exploitation.

Which products are affected by CVE-2026-44494?

Affected products include Axios.

How do I fix CVE-2026-44494?

Upgrade affected software to a fixed version, for example Axios 1.16.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-44494 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.