GHSA-38GX-CFQF-F652

Advisory lineage Upstream: 0 Downstream: 2
Published: 01 Aug 2026, 15:30
Last modified:10 Sept 2026, 03:51

Vulnerability Summary

Overall Risk (default)
medium
25/100
CVSS Score
6.3 MEDIUM
4.0 (osv_npm)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 Aug 2026, 15:30
Published
Vulnerability first disclosed
10 Sept 2026, 03:51
Last Modified
Vulnerability information updated

Description

Duplicate Advisory: Axios: Prototype pollution auth subfields can inject Basic auth ## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-xj6q-8x83-jv6g. This link is maintained to preserve external references. ## Original Description axios versions >=1.15.2 and <1.18.0 contain prototype-pollution read-side gadgets in Basic auth subfield handling (lib/adapters/http.js and lib/helpers/resolveConfig.js). When an application is already affected by a separate prototype-pollution primitive and makes an axios request with an own auth object that omits the username and/or password properties, axios reads the inherited Object.prototype.username and Object.prototype.password values and uses them to construct an outbound 'Authorization: Basic ...' header. axios itself does not pollute prototypes. The practical impact is outbound request tampering: an attacker who controls the polluted prototype values can inject attacker-chosen Basic auth credentials or replace an existing Authorization header. Credential disclosure is only possible under additional application-specific conditions.

CVSS Metrics

  • v4.0•MEDIUM•Score: 6.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected Systems

  • Npm•axios

    ≥ 1.15.2

References (3)