CVE-2016-9123: Integer Overflow in go-jose

June 23, 2021 (updated July 6, 2026)

go-jose before 1.0.5 suffers from a CBC-HMAC integer overflow on 32-bit architectures. An integer overflow could lead to authentication bypass for CBC-HMAC encrypted ciphertexts on 32-bit architectures.

References

github.com/advisories/GHSA-3fx4-7f69-5mmg
github.com/square/go-jose/commit/789a4c4bd4c118f7564954f441b29c153ccd6a96
hackerone.com/reports/165170
nvd.nist.gov/vuln/detail/CVE-2016-9123
pkg.go.dev/vuln/GO-2020-0009
www.openwall.com/lists/oss-security/2016/11/03/1

Code Behaviors & Features

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