CVE-2026-67312

axios 0.28.0 before 0.33.0 and 1.0.0 before 1.18.0 Denial of Service via formToJSON

HIGH
7.5
CVSS Score
Published: August 1, 2026 at 12:22 PM UTC
Updated: October 29, 2026 at 09:16 PM UTC
1 product affected across 1 vendorAxios

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

axios versions from 0.28.0 before 0.33.0 and from 1.0.0 before 1.18.0 contain uncontrolled recursion in formDataToJSON (exposed as axios.formToJSON() and used internally when serializing FormData with Content-Type: application/json). When an application passes attacker-controlled FormData field names, a field name with thousands of nested bracket-delimited segments causes unbounded recursion in buildPath(), exhausting the JavaScript call stack (RangeError: Maximum call stack size exceeded) and causing denial of service for that request, or process termination in applications without appropriate error handling.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.28.0 ≤ v < 0.33.01.0.0 ≤ v < 1.18.00.28.01.0.0
Vendor states this is fixed in 0.33.0 (unaffected)
Vendor states this is fixed in 1.18.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-400

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