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CVE Record

CVE-2026-42264: 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.

HighCVSS 7.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Axios could unknowingly use malicious configuration values if another bug has polluted Object.prototype in the same process. In affected versions, this can let outbound HTTP requests receive injected credentials or be redirected through attacker-controlled behavior. The confirmed fix is axios 1.15.2.

Executive priority

Treat as high priority for internet-facing services, API gateways, automation workers, and systems handling secrets in outbound requests. The prerequisite reduces likelihood, but successful abuse could redirect traffic or leak credentials.

Technical view

Axios 1.0.0 through versions before 1.15.2 read auth, baseURL, socketPath, beforeRedirect, and insecureHTTPParser via direct property access in the HTTP adapter. Without own-property checks, these fields become prototype pollution gadgets when Object.prototype is already polluted. CVSS is 7.4 high with high attack complexity.

Likely exposure

Most relevant to Node.js or server-side applications using axios's HTTP adapter for outbound requests. Exposure requires vulnerable axios and a separate prototype pollution path in the same process, so inventory alone is necessary but not sufficient to prove exploitability.

Exploitation context

The bundle does not show CISA KEV listing or cited evidence of active exploitation. Practical abuse requires a prior or concurrent prototype pollution condition, but impact can include credential injection and request hijacking once that condition exists.

Researcher notes

Focus review on request construction paths and polluted inherited values for the five named adapter properties. The root risk is gadget behavior after prototype pollution, not axios alone creating the pollution source. Avoid assuming exploitability without a pollution primitive.

Mitigation direction

  • Upgrade axios to version 1.15.2 or later.
  • Update direct and transitive axios dependencies in lockfiles and builds.
  • Check Red Hat errata if consuming axios through Red Hat products.
  • Review vendor advisories for product-specific remediation guidance.
  • Address known prototype pollution flaws in the same application process.

Validation and detection

  • Search SBOMs and lockfiles for axios versions >=1.0.0 and <1.15.2.
  • Confirm deployed artifacts include axios 1.15.2 or later.
  • Identify server-side outbound HTTP paths using axios's HTTP adapter.
  • Assess whether the same process has known prototype pollution exposure.
  • Track Red Hat and GitHub advisories for updated affected-product details.
Prepared
Confidence
high
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-1321: Exact CWE lookup

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cwe · low confidence lookup

CWE-915: Exact CWE lookup

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description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2026-42264 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.4 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
5Timeline events
2ADP providers
15Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.4CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N2.25.2GitHub_M
7.4CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N2.25.2redhat-SADP

Vulnerability scoring details

Base CVSS 3.1 score

7.4High
CVSS 3.1 vector shape for CVE-2026-42264Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
redhat-SADPaxios: Axios: Prototype pollution allows information disclosure and request manipulation
other:Red Hat severity ratingcvssV3_1
  • 2026-05-08T04:02:21.039Z: Reported to Red Hat.
  • 2026-05-08T03:20:24.248Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
axiosaxios>= 1.0.0, < 1.15.2Listed
Weakness

CWE details

CWE-1321CWE-915

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-1321 · source CWE mapping

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs
CWE-915 · source CWE mapping

Improperly Controlled Modification of Dynamically-Determined Object Attributes

Improperly Controlled Modification of Dynamically-Determined Object Attributes represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs