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CVE-2026-25639

Axios vulnerability

7.5 HIGHPublic exploitEPSS 1.80%
  1. Published9 Feb 2026

Description

Axios is a promise based HTTP client for the browser and Node.js. Prior to versions 0.30.3 and 1.13.5, the mergeConfig function in axios crashes with a TypeError when processing configuration objects containing __proto__ as an own property. An attacker can trigger this by providing a malicious configuration object created via JSON.parse(), causing complete denial of service. This vulnerability is fixed in versions 0.30.3 and 1.13.5.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Axios≥ 1.0.0 < 1.13.5 · < 0.30.3

Remediation

Fixed in
Axios≥ 1.13.5

References

and 40 more references

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Frequently asked

Is CVE-2026-25639 being actively exploited?

CVE-2026-25639 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.80%.

How severe is CVE-2026-25639?

CVE-2026-25639 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 1.80% probability of exploitation.

Which products are affected by CVE-2026-25639?

Affected products include Axios.

How do I fix CVE-2026-25639?

Upgrade affected software to a fixed version, for example Axios 1.13.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-25639 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.