What’s Vulnerable › Vulnerabilities

CVE-2026-59168: Dasel: Unbounded recursion in JSON and XML readers causes unrecoverable stack-overflow DoS

• Severity: medium (CVSS 6.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-21 · updated 2026-09-24
• Weakness: CWE-674

Description

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.

Affected products

• TomWright dasel: from 3.0.0, < 3.11.1

References

• https://github.com/TomWright/dasel/commit/4c91d0d02dc59ce8404709b1bfed7a6fabe62f68
• https://github.com/TomWright/dasel/releases/tag/v3.11.1
• https://github.com/TomWright/dasel/security/advisories/GHSA-cqxr-jxr2-85pq

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