CVE-2026-42264: Axios: Prototype pollution read-side gadgets in HTTP adapter allow credential injection and request hijacking
Vulnerability summary
CVE-2026-42264 is a critical (CVSS 9.1) vulnerability in axios. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 56.5% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1 · Related 3Timeline
- 08-05-2026PublishedVulnerability first disclosed.
- 11-09-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
7 scores · 7 sources · 1 version- CVE.orgCNA7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- OSV · DebianEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- OSV · WolfiEcosystem advisory · calculated7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NDiffers
- OSV · NpmEcosystem advisory · calculated7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NDiffers
- OSV · ChainguardEcosystem advisory · calculated7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NDiffers
EPSS trend
Probability
0.80%
Chance of exploitation in the next 30 days
Percentile
57%
Versus all other CVEs
30-day change
Decrease -0.17 pp
From 0.97% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundAxios
Maturity: poc
Weaknesses
CWE · root cause- CWE-1321Improperly Controlled Modification of Object Prototype AttributesThe product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.
- CWE-915Improperly Controlled Modification of Dynamically-Determined Object AttributesThe product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified.
Affected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard79 products
- airflow-2All versions (No fix recorded)
- airflow-core-2All versions (No fix recorded)
- awx< 24.6.1-r42
- gitlab-rails-ce-18.1< 18.1.6-r32
- gitlab-rails-ce-18.10All versions (No fix recorded) | < 18.10.8-r8
Wolfi19 products
- jitsucom-jitsu-console< 2.11.0-r22
- katib-earlystopping< 0.19.0-r31
- katib-suggestion-goptuna-compatAll versions (No fix recorded)
- katib-suggestion-hyperband< 0.19.0-r31
- katib-suggestion-hyperopt< 0.19.0-r40 | < 0.19.0-r31
Axios1 product
- axios≥ 1.0.0, < 1.15.2
Debian1 product
- node-axiosAll versions (No fix recorded) | < 1.15.2-1
Npm1 product
- axios≥ 1.0.0, < 1.15.2
Ubuntu1 product
- node-axios< 1.6.8+dfsg-2ubuntu0.1~esm1 | All versions (No fix recorded) | < 1.13.2+dfsg-1ubuntu0.1~esm1
6 vendors · 102 products
References
29 links- github.com/axios/axios/security/advisories/GHSA-q8qp-cvcw-x6jjX Refsource CONFIRMREPORTAdvisoryWEBExploitMitigationVendor Advisory
- github.com/axios/axios/commit/47915144662f2733e6c051bdcb895a8c8f0586aaX Refsource MISCREPORTFIXWEBPatch
Show all 29 references
- github.com/axios/axiosPACKAGE