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Fencer Intel
medium 6.5

CVE-2021-38698 json

HashiCorp Consul and Consul Enterprise 1.10.1 Txn.Apply endpoint allowed services to register proxies for other services, enabling access to service traffic.

published 5y ago modified last mo. also BIT-consul-2021-38698 , EUVD-2021-1995 , GHSA-6hw5-6gcx-phmw , GO-2022-0559

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

HashiCorp Consul and Consul Enterprise 1.10.1 Txn.Apply endpoint allowed services to register proxies for other services, enabling access to service traffic. Fixed in 1.8.15, 1.9.9 and 1.10.2.

Patch / fix

  • go github.com/hashicorp/consul 1.8.15, 1.9.9, 1.10.2
  • bitnami consul 1.8.15, 1.9.9, 1.10.2
  • hashicorp consul 1.8.15, 1.9.9, 1.10.2
  • consul Arch Linux 1.10.2-1

arch linux advisories AVG-2360

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Exploit prediction

1.42% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N
OSV 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/hashicorp/consul
>=1.10.1, <1.10.2
>=1.9.0, <1.9.9
<1.8.15
1.10.2
1.9.9
1.8.15
bitnami consul
<1.8.15
>=1.9.0, <1.9.9
>=1.10.0, <1.10.2
1.8.15
1.9.9
1.10.2

Classification

Weakness

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.