CVE-2020-7219: HashiCorp Consul and Consul Enterprise up to 1.6.2 HTTP/RPC services allowed unbounded resource usage, and wer

Q: How do I fix CVE-2020-7219?

consul: upgrade to 1.6.2. Exact commands for each OS are on this page.

Q: Is CVE-2020-7219 being exploited?

CVE-2020-7219 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-7219 affect?

CVE-2020-7219 affects consul. Severity is high (CVSS 7.5). HashiCorp Consul and Consul Enterprise up to 1.6.2 HTTP/RPC services allowed unbounded resource usage, and were susceptible to unauthenticated denial of service. Fixed in 1.6.3.

Q: How urgent is CVE-2020-7219?

Priority 52/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2020-7219 is a high-severity flaw (CVSS 7.5) affecting consul. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

HashiCorp Consul and Consul Enterprise up to 1.6.2 HTTP/RPC services allowed unbounded resource usage, and were susceptible to unauthenticated denial of service. Fixed in 1.6.3.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-770
Published	2020-01-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: hashicorp

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-01-31 13:15 UTCPublished CVE record published
2026-06-17 03:24 UTCUpdated Record last modified

hashicorp consul UPGRADE

Affected: < 1.6.2

Fixed in: 1.6.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy consul || rpm -q consul || consul --version

2. UPGRADE to 1.6.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade consul

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade consul

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-7219?

consul: upgrade to 1.6.2. Exact commands for each OS are on this page.

Is CVE-2020-7219 being exploited?

CVE-2020-7219 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-7219 affect?

CVE-2020-7219 affects consul. Severity is high (CVSS 7.5). HashiCorp Consul and Consul Enterprise up to 1.6.2 HTTP/RPC services allowed unbounded resource usage, and were susceptible to unauthenticated denial of service. Fixed in 1.6.3.

How urgent is CVE-2020-7219?

Priority 52/100. High severity; Remotely exploitable, no login, no user action

Software pages

Consul vulnerabilities

Related CVEs

CVE-2025-11374 MEDIUM 6.5 UPGRADE Consul and Consul Enterprise’s (“Consul”) key/value endpoint is vulnerable to denial of service (DoS) due to i
CVE-2025-11375 MEDIUM 6.5 UPGRADE Consul and Consul Enterprise’s (“Consul”) event endpoint is vulnerable to denial of service (DoS) due to lack
CVE-2024-10086 MEDIUM 6.1 UPGRADE A vulnerability was identified in Consul and Consul Enterprise such that the server response did not explicitl
CVE-2024-10006 HIGH 8.3 UPGRADE A vulnerability was identified in Consul and Consul Enterprise (“Consul”) such that using Headers in L7 traffi
CVE-2024-10005 HIGH 8.1 UPGRADE A vulnerability was identified in Consul and Consul Enterprise (“Consul”) such that using URL paths in L7 traf

References

← Back to latest CVEs