Service interruption via unbounded formToJSON recursion
Published Aug 1, 2026 · Updated Aug 1, 2026
Uncontrolled recursion in formDataToJSON in Axios allows remote attackers to interrupt services through crafted FormData field names. buildPath recursively handles every bracket-delimited key segment without a depth limit, eventually exhausting the JavaScript call stack. Reachability requires an application to convert attacker-controlled keys; the result is request failure or process termination when the RangeError is unhandled.
Summary
What happened
Uncontrolled recursion in formDataToJSON in Axios allows remote attackers to interrupt services through crafted FormData field names. buildPath recursively handles every bracket-delimited key segment without a depth limit, eventually exhausting the JavaScript call stack. Reachability requires an application to convert attacker-controlled keys; the result is request failure or process termination when the RangeError is unhandled.
The record
- CVE
- CVE-2026-67312
- Published
- Aug 1, 2026
- Updated
- Aug 1, 2026
- Vendor
- Axios
- Product
- Axios
- Classifications
- CWE-400, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 1, 2026CVE publishedPublication date reported by the CVE source.
- Aug 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.28.0 <0.33.0
- Affected versionversion=1.0.0 <1.18.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GHSA-pmv8-rq9r-6j72 formToJSON proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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