TomWright Dasel up to 3.11.0 Parsing json_reader.go decodeValue/decodeObject/decodeArray/parseElement stack-based overflow

Summaryinfo

A vulnerability categorized as problematic has been discovered in TomWright Dasel up to 3.11.0. Affected by this issue is the function decodeValue/decodeObject/decodeArray/parseElement of the file parsing/json/json_reader.go of the component Parsing. Executing a manipulation can lead to stack-based overflow. This vulnerability appears as CVE-2026-59168. The attack requires local access. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in TomWright Dasel up to 3.11.0. This vulnerability affects the function decodeValue/decodeObject/decodeArray/parseElement of the file parsing/json/json_reader.go of the component Parsing. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect availability. CVE summarizes:

Dasel is a command-line tool and library for querying, modifying, and transforming data structures. From 3.0.0 until 3.11.1, parsing/json/json_reader.go decodeValue, decodeObject, and decodeArray, and parsing/xml/reader.go parseElement, recurse once per input nesting level without a depth guard. Deeply nested attacker-controlled JSON or XML supplied through parsing.Format(...).NewReader(...).Read(data), the command-line interface, or the parse selector function can exhaust the Go goroutine stack and raise an unrecoverable fatal error that terminates the entire process. The XML input-size limit does not prevent depth exhaustion, and defer or recover cannot intercept the failure. This issue is fixed in version 3.11.1.

The advisory is available at github.com. This vulnerability was named CVE-2026-59168 since 07/02/2026. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

Upgrading to version 3.11.1 eliminates this vulnerability.

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Productinfo

Vendor

• TomWright

Name

• Dasel

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8
• 3.9
• 3.10
• 3.11.0

Website

• Product: https://github.com/TomWright/dasel/

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