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CVE-2026-42264 affects the Node.js HTTP adapter in Axios versions 1.0.0 through 1.15.1. The adapter reads auth, baseURL, socketPath, beforeRedirect, and insecureHTTPParser through direct property access without own-property checks. Although mergeConfig() enumerates own properties, subsequent reads can inherit attacker-controlled values from Object.prototype when those options are absent as own properties. Axios does not itself create the prerequisite prototype pollution; it consumes pollution introduced elsewhere in the same process. Successful exploitation can manipulate outbound requests and disclose information. Axios 1.15.2 fixes the vulnerability.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Axios prototype-pollution flaw allowing information disclosure and request manipulation.
Axios prototype-pollution flaw enabling information disclosure and request manipulation.
A high-severity Axios prototype-pollution gadget issue that can cause information disclosure and manipulation of outbound HTTP requests when Object.prototype has already been polluted elsewhere in the process.
An Axios prototype pollution vulnerability allowing information disclosure and request manipulation.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.