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MessagePack: Nested arrays can blow past buffer length limits

Exact source revision recorded 23 Oct 2026 16:01:25 UTC. It does not establish the source's current position. Latest evidence.

osv · GHSA-qhrr-8q5h-9q3h

Published

MessagePack

NuGet

ECOSYSTEM · introduced 0 → fixed 2.5.303

122 explicitly affected versions

0.1.0-beta, 0.2.0-beta, 0.2.1-beta, 0.2.2-beta, 0.2.3-beta, 0.3.0-beta, 0.4.0, 0.4.1, 0.4.2, 0.5.0, 0.6.0, 0.6.1, 0.7.0, 0.7.2, 0.8.0, 0.8.1, 0.8.2, 0.8.3, 0.8.4, 0.8.5, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1, 1.1.1.1, 1.1.2, 1.2.0, 1.2.0.1, 1.2.0.2, 1.2.1, 1.2.2, 1.2.3, 1.3.0, 1.3.1, 1.3.1.1, 1.3.2, 1.3.3, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.5.0, 1.5.0.1, 1.5.0.2, 1.5.1, 1.6.0, 1.6.0.1, 1.6.0.2, 1.6.0.3, 1.6.1, 1.6.1.1, 1.6.1.2, 1.6.2, 1.7.0, 1.7.1, 1.7.2, 1.7.3, 1.7.3.1, 1.7.3.2, 1.7.3.3, 1.7.3.4, 1.7.3.7, 1.8.71-beta, 1.8.74, 1.8.80, 1.9.11, 1.9.3, 1.9.3-g129239b107, 2.0.107-alpha, 2.0.108-alpha, 2.0.110-alpha, 2.0.110-alpha-g1e44a9106f, 2.0.119-beta, 2.0.123-beta, 2.0.171-beta, 2.0.204-beta, 2.0.221-beta, 2.0.231-rc, 2.0.270-rc, 2.0.299-rc, 2.0.323, 2.0.335, 2.1.115, 2.1.143, 2.1.152, 2.1.165, 2.1.194, 2.1.80, 2.1.90, 2.2.113, 2.2.36-alpha, 2.2.44-rc, 2.2.60, 2.2.85, 2.3.112, 2.3.58-alpha, 2.3.73-alpha, 2.3.75, 2.3.85, 2.4.14-alpha, 2.4.23-alpha, 2.4.35, 2.4.59, 2.5.103, 2.5.108, 2.5.124, 2.5.129, 2.5.140, 2.5.168, 2.5.171, 2.5.172, 2.5.187, 2.5.192, 2.5.198, 2.5.205, 2.5.301, 2.5.302, 2.5.64-alpha, 2.5.94

MessagePack

NuGet

ECOSYSTEM · introduced 3.0.0 → fixed 3.1.9

17 explicitly affected versions

3.0.111-alpha, 3.0.129-beta, 3.0.134-beta, 3.0.208-rc-0001, 3.0.3, 3.0.300, 3.0.308, 3.0.54-alpha, 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.1.6, 3.1.7, 3.1.8

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Sources read 9 Nov 10:47 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current