[Security] Bump msgpack5 from 4.2.1 to 4.5.1

[dependabot-preview]

Bumps msgpack5 from 4.2.1 to 4.5.1. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Prototype poisoning

Impact

The issue is as follows: when msgpack5 decodes a map containing a key "__proto__", it assigns the decoded value to __proto__. As you are no doubt aware, Object.prototype.__proto__ is an accessor property for the receiver's prototype. If the value corresponding to the key __proto__ decodes to an object or null, msgpack5 sets the decoded object's prototype to that value.

An attacker who can submit crafted MessagePack data to a service can use this to produce values that appear to be of other types; may have unexpected prototype properties and methods (for example length, numeric properties, and push et al if __proto__'s value decodes to an Array); and/or may throw unexpected exceptions when used (for example if the __proto__ value decodes to a Map or Date). Other unexpected behavior might be produced for other types.

There is no effect on the global prototype.

An example:

... (truncated)

Affected versions: >= 4.0.0 < 4.5.1

Release notes

Sourced from msgpack5's releases.

v4.5.1

fix: prevent object prototype poisoning #99

v4.5.0

• Restored previous v4.2.1 as semver-major commits landed

v4.4.0

📚 PR:

• implement Timestamp96 (#88)

v4.3.0

• Handle NaN (#75)
• Refactoting of decoder for better maintainability (#76)
• Improve internals and add some features (#78)
• ci: use gh-actions (#87)
• encode date is null fix (#85)

Commits

• See full diff in compare view

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