Prototype pollution via unsanitized select alias paths
Published Jul 13, 2026 · Updated Jul 13, 2026
Prototype pollution in TanStack DB 0.6.0 through 0.6.8 allows remote authenticated users to modify Object.prototype via crafted select aliases. The select compiler splits dotted alias keys and walks their segments into the result object without rejecting proto, prototype, or constructor. Exploitation requires an application path that lets remote authenticated users influence a select alias; successful use changes shared prototype state and can corrupt application logic.
Summary
What happened
Prototype pollution in TanStack DB 0.6.0 through 0.6.8 allows remote authenticated users to modify Object.prototype via crafted select aliases. The select compiler splits dotted alias keys and walks their segments into the result object without rejecting proto, prototype, or constructor. Exploitation requires an application path that lets remote authenticated users influence a select alias; successful use changes shared prototype state and can corrupt application logic.
The record
- CVE
- CVE-2026-15607
- Published
- Jul 13, 2026
- Updated
- Jul 13, 2026
- Vendor
- TanStack
- Product
- TanStack DB
- Classifications
- CWE-1321, CWE-94
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 13, 2026CVE publishedPublication date reported by the CVE source.
- Jul 13, 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=0.6.0
- Affected versionversion=0.6.1
- Affected versionversion=0.6.2
- Affected versionversion=0.6.3
- Affected versionversion=0.6.4
- Affected versionversion=0.6.5
- Affected versionversion=0.6.6
- Affected versionversion=0.6.7
- Affected versionversion=0.6.8
What conditions does exploitation require?
What is affected?
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
- queryOnce().select() alias prototype-pollution reproductionproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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