NVD / CVE Program· CNA GitHub_M

CVE-2026-42264: Axios: Prototype pollution read-side gadgets in HTTP adapter allow credential injection and request hijacking

Noroxi assessment

Priority: Monitor (action score 36/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.79% (FIRST EPSS); higher than 56.5% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
Fixed version: axios axios 1.15.2.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to axios axios 1.15.2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Axios is a promise based HTTP client for the browser and Node.js. From version 1.0.0 to before version 1.15.2, fFive config properties (auth, baseURL, socketPath, beforeRedirect, and insecureHTTPParser) in the HTTP adapter are read via direct property access without hasOwnProperty guards, making them exploitable as prototype pollution gadgets. When Object.prototype is polluted by another dependency in the same process, axios silently picks up these polluted values on every outbound HTTP request. This issue has been patched in version 1.15.2.

CriticalCVSS 9.1 · v3.1—No exploit Fix available

Published: May 8, 2026
Updated: Sep 11, 2026
EPSS: 0.7% · 56th percentile
CWE: CWE-1321

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 36 / 40 · 9.1 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.7%

CISA SSVC decision

Exploitation: proof of concept
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 9.1
CNA · GitHub_M: 7.4; 1.7 point gap

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

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Vendor	Product	CPE
axios	axios	cpe:2.3:a:axios:axios

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Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

axios axios1.0.0 and later · before 1.15.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

axios axios
- >= 1.0.0, < 1.15.2affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:12	node-axios	from 0	—
Debian:14	node-axios	before 1.15.2-1	1.15.2-1
npm	axios	from 1.0.0 · before 1.15.2	1.15.2
openSUSE:Leap 16.0	agama-web-ui	before 17+612.d8bf69336-160000.11.1	17+612.d8bf69336-160000.11.1

Same product

axios: all records

Other highest-scoring records for the same primary product.

CVE-2026-42043Axios: Incomplete Fix for CVE-2025-62718 — NO_PROXY Protection Bypassed via RFC 1122 Loopback Subnet (127.0.0.0/8) in Axios 1.15.0
40Plan
CVE-2024-57965In axios before 1.7.8, lib/helpers/isURLSameOrigin.js does not use a URL object when determining an origin, and has a potentially unwanted s
39Monitor
CVE-2026-44492Axios: shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)
38Monitor

Published before and after this one in the same product

← EarlierCVE-2026-42042Apr 24, 2026 · Axios: XSRF Token Cross-Origin Leakage via Prototype Pollution Gadget in `withXSRFToken` Boolean Coercion
21Monitor
← EarlierCVE-2026-42044Apr 24, 2026 · Axios: Invisible JSON Response Tampering via Prototype Pollution Gadget in `parseReviver`
36Monitor
Later →CVE-2026-44486Jun 11, 2026 · Axios: Proxy-Authorization header leaks to redirect target when proxy is re-evaluated to direct connection
30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
axios axios	1.15.2 · description	Vendor (CNA)
debian:node-axios	1.15.2-1 · Debian:14	Package registry (OSV)
npm:axios	1.15.2	Package registry (OSV)
opensuse:agama-web-ui	17+612.d8bf69336-160000.11.1 · openSUSE:Leap 16.0	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2026-101909143 days apartAxios: Prototype Pollution Gadget in axios toFormData Options
33Monitor
CVE-2026-4449034 days apartAxios: DoS & Header Injection via Prototype Pollution Read-Side Gadgets in axios merge functions
32Monitor
CVE-2026-4203314 days apartAxios: Prototype Pollution Gadgets - Response Tampering, Data Exfiltration, and Request Hijacking
29Monitor
CVE-2026-101902143 days apartAxios: Prototype-Pollution Gadget in the Default Instance Allows Inherited Object.prototype.method to Override HTTP Method
27Monitor
CVE-2026-101908143 days apartAxios: Prototype pollution gadget in fetch adapter can alter outbound requests
27Monitor
CVE-2026-6731685 days apartaxios before 1.18.0 Prototype Pollution via bodyless methods
25Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).