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Fencer Intel
high 7.5

CVE-2016-9123 json

Integer Overflow in go-jose

published 2017-03-28 9 y ago modified 2026-07-06 4 mo ago also GHSA-3fx4-7f69-5mmg , GO-2020-0009 , EUVD-2021-1255

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/square/go-jose 0.0.0-20160903044734-789a4c4bd4c1
  • golang-gopkg-square-go-jose.v1 Debian 14, Debian 13, Debian 12 1.0.5-1

debian advisories DEBIAN-CVE-2016-9123

Exploit prediction

2.15% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
go github.com/square/go-jose
<0.0.0-20160903044734-789a4c4bd4c1
0.0.0-20160903044734-789a4c4bd4c1

Affected products

  • n/a Go JOSE All versions before 1.0.5

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.