Uncontrolled Recursion Affecting azure-functions-host package, versions *
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.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-AZUREFUNCTIONSHOST-17957032
- published13 Jul 2026
- disclosed22 Jun 2026
Introduced: 22 Jun 2026
NewCVE-2026-48506 (opens in a new tab)How to fix?
There is no fixed version for Minimos:latest azure-functions-host.
NVD Description
Note: Versions mentioned in the description apply only to the upstream azure-functions-host package and not the azure-functions-host package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
MessagePack for C# is a MessagePack serializer for C#. Prior to 2.5.301 and 3.1.7, MessagePackReader.TrySkip() recursively descends into nested arrays and maps without incrementing the reader depth or calling the configured depth checks. This bypasses MessagePackSecurity.MaximumObjectGraphDepth, the library's documented protection against deeply nested object graphs. Many generated and dynamic formatters call reader.Skip() when they encounter unknown map keys, unknown array members, ignored fields, or data that should be skipped for forward compatibility. A deeply nested value in one of these skipped positions can therefore cause unbounded recursion and an uncatchable StackOverflowException. This vulnerability is fixed in 2.5.301 and 3.1.7.