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High 7.5Published Feb 9, 2026

CVE-2026-25639Axios affected by Denial of Service via __proto__ Key in mergeConfig

Updated under an hour ago ()

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It affects axios and 34 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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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
7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-754, CWE-1287
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Modified
Record last updated
Sep 10, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
axios axios
axios:axios (from the name)
from 1.0.0, < 1.13.5; before 0.30.3
CNA record
from 0:2.6.7-1.el9ap not affected
CISA ADP
from 1777128790 not affected
CISA ADP
from 1774431392 not affected
CISA ADP
from 1783350952 not affected
CISA ADP
from 1774545605 not affected
CISA ADP
from 1770913709 not affected
CISA ADP
from 1780590717 not affected
CISA ADP
from 1774282136 not affected
CISA ADP
from 1775577192 not affected
CISA ADP

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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