Axios: Prototype pollution read-side gadgets in HTTP adapter allow credential injection and request hijacking
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.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for help- Published
- May 8, 2026
- Updated
- Sep 11, 2026
- EPSS
- 1.0% · 60th percentile
- CWE
- CWE-1321
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Report tools
Action score
36
Monitor
Low priority for now.
- CVSS
- 36 / 40 · 9.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.0%
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.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| axios | axios | cpe:2.3:a:axios:axios |
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 | all versions | — |
| 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 recordsOther 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 1.15.040Plan
- 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 s39Monitor
- CVE-2026-42044Axios: Invisible JSON Response Tampering via Prototype Pollution Gadget in `parseReviver`36Monitor
- CVE-2026-44494Axios: Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`34Monitor
- CVE-2026-44492Axios: shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)34Monitor
- CVE-2026-101909Axios: Prototype Pollution Gadget in axios toFormData Options33Monitor
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.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
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 researchersFinders, 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 Options33Monitor
- CVE-2026-4449034 days apartAxios: DoS & Header Injection via Prototype Pollution Read-Side Gadgets in axios merge functions32Monitor
- CVE-2026-4203314 days apartAxios: Prototype Pollution Gadgets - Response Tampering, Data Exfiltration, and Request Hijacking29Monitor
- CVE-2026-101902143 days apartAxios: Prototype-Pollution Gadget in the Default Instance Allows Inherited Object.prototype.method to Override HTTP Method27Monitor
- CVE-2026-101908143 days apartAxios: Prototype pollution gadget in fetch adapter can alter outbound requests27Monitor
- CVE-2026-6731685 days apartaxios before 1.18.0 Prototype Pollution via bodyless methods25Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- 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.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-1321 · Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- github.com/axios/axios/commit/47915144662f2733e6c051bdcb895a8c8f0586aa
- github.com/axios/axios/pull/10779
- github.com/axios/axios/releases/tag/v1.15.2
- access.redhat.com/errata/RHSA-2026:20889
- access.redhat.com/errata/RHSA-2026:20938
- access.redhat.com/errata/RHSA-2026:33173
- access.redhat.com/errata/RHSA-2026:36207
- access.redhat.com/errata/RHSA-2026:37287
- access.redhat.com/errata/RHSA-2026:37288
- access.redhat.com/errata/RHSA-2026:37297
- access.redhat.com/errata/RHSA-2026:41928
- access.redhat.com/errata/RHSA-2026:41951
- access.redhat.com/errata/RHSA-2026:42142
- access.redhat.com/errata/RHSA-2026:50300
- access.redhat.com/errata/RHSA-2026:60520
- access.redhat.com/errata/RHSA-2026:62260
- access.redhat.com/errata/RHSA-2026:66488
- access.redhat.com/errata/RHSA-2026:66545
- access.redhat.com/security/cve/CVE-2026-42264
- bugzilla.redhat.com/show_bug.cgi?id=2467927
Vendor advisories and official records. Exploit/PoC links are deliberately left out.