Allocation of Resources Without Limits or Throttling Affecting thrift package, versions [,0.25.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Allocation of Resources Without Limits or Throttling vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-CONAN-THRIFT-21279784
- published20 Oct 2026
- disclosed2 Oct 2026
- creditBin Luo
Introduced: 2 Oct 2026
NewCVE-2026-66055 (opens in a new tab)How to fix?
Upgrade thrift to version 0.25.0 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the readJSONString and readJSONNumericChars methods of TJSONProtocol, which accumulate a value byte by byte without counting it against the configured string size limit, a limit the protocol does not implement at all and reports as unset. An attacker can exhaust memory on the peer with a single JSON string or number, because these values are delimited rather than length prefixed, so there is no declared size to reject before the bytes are consumed and nothing bounds the accumulation while they are. This requires an endpoint that uses TJSONProtocol, and the defect is present in the C++, Java, Go, netstd, Python, and Delphi bindings, while the container read path is separately unbounded and is not addressed as part of this issue.