CVE-2024-10086: A vulnerability was identified in Consul and Consul Enterprise such that the server response did not explicitl

Routine

MEDIUM 6.1UPGRADE

CVE-2024-10086 is a medium-severity flaw (CVSS 6.1) affecting consul. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was identified in Consul and Consul Enterprise such that the server response did not explicitly set a Content-Type HTTP header, allowing user-provided inputs to be misinterpreted and lead to reflected XSS.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-10-30
Last modified	2026-06-17

Publisher (CNA): HashiCorp Inc. · Vendor: hashicorp

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

Am I affected?

Timeline

2024-10-30 22:15 UTCPublished CVE record published
2026-06-17 06:54 UTCUpdated Record last modified

hashicorp consul UPGRADE

Affected: >= 1.4.1 and < 1.15.15 · >= 1.4.1 and < 1.20.0 · >= 1.18.0 and < 1.18.5 · >= 1.19.0 and < 1.19.3

Fixed in: 1.15.15, 1.18.5, 1.19.3, 1.20.0

Safe to downgrade to: a release before 1.4.1

1. Check installed version

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

2. UPGRADE to 1.15.15 (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.

3. If no update is available yet, DOWNGRADE to a release before 1.4.1 (Debian / Ubuntu)

apt-cache madison consul sudo apt install consul=<VERSION_BEFORE_1.4.1> sudo apt-mark hold consul

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list consul sudo dnf downgrade consul-<VERSION_BEFORE_1.4.1> sudo dnf versionlock add consul

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2024-10086?

consul: upgrade to 1.15.15, 1.18.5, 1.19.3, 1.20.0. Exact commands for each OS are on this page.

Is CVE-2024-10086 being exploited?

CVE-2024-10086 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-2024-10086 affect?

CVE-2024-10086 affects consul. Severity is medium (CVSS 6.1). A vulnerability was identified in Consul and Consul Enterprise such that the server response did not explicitly set a Content-Type HTTP header, allowing user-provided inputs to be misinterpreted and lead to reflected XSS.

How urgent is CVE-2024-10086?

Priority 30/100. No elevated risk signals yet.

Software pages

Consul vulnerabilities

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References

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