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Fencer Vulns
medium 5.3

CVE-2020-12797 json

Incorrect Permission Assignment for Critical Resource in Hashicorp Consul

published 2020-06-11 6 y ago modified 2026-09-08 2 mo ago also BIT-consul-2020-12797 , EUVD-2021-1337 , GHSA-hwqm-x785-qh8p , GO-2022-0847

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

HashiCorp Consul and Consul Enterprise failed to enforce changes to legacy ACL token rules due to non-propagation to secondary data centers. Introduced in 1.4.0, fixed in 1.6.6 and 1.7.4.

Patch / fix

  • go github.com/hashicorp/consul 1.6.6, 1.7.4
  • bitnami consul 1.6.7, 1.7.4
  • hashicorp consul 1.6.6, 1.7.4
  • consul Debian 11 1.7.4+dfsg1-1

debian advisories DEBIAN-CVE-2020-12797

Exploit prediction

1.55% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
GitHub 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem package affected fixed in
go github.com/hashicorp/consul
>=1.6.0, <1.6.6
>=1.7.0, <1.7.4
1.6.6
1.7.4
bitnami consul
>=1.4.0, <1.6.7
>=1.7.0, <1.7.4
1.6.7
1.7.4

Classification

Weakness
  • CWE-732 Incorrect Permission Assignment for Critical Resource

References

Sources

Fencer Vulns 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.