HashiCorp Consul vulnerabilities: known CVEs & security history
HashiCorp · Service networking · 35 tracked CVEs · 0 actively exploited · updated June 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all HashiCorp Consul release lines — 35 in total. A CVE here doesn't mean your version is affected — check HashiCorp Consul's current status and the safe version to run.
Known HashiCorp Consul CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2021-41805 | high | 8.8 | 35% | 2021 |
| CVE-2021-37219 | high | 8.8 | 1% | 2021 |
| CVE-2023-2816 | high | 8.7 | 1% | 2023 |
| CVE-2021-3121 | high | 8.6 | 3% | 2021 |
| CVE-2024-10006 | high | 8.3 | 0% | 2024 |
| CVE-2024-10005 | high | 8.1 | 1% | 2024 |
| CVE-2019-8336 | high | 8.1 | 1% | 2019 |
| CVE-2022-29153 | high | 7.5 | 9% | 2022 |
| CVE-2021-36213 | high | 7.5 | 2% | 2021 |
| CVE-2021-32574 | high | 7.5 | 1% | 2021 |
| CVE-2021-28156 | high | 7.5 | 2% | 2021 |
| CVE-2020-25201 | high | 7.5 | 3% | 2020 |
| CVE-2020-13250 | high | 7.5 | 3% | 2020 |
| CVE-2020-13170 | high | 7.5 | 2% | 2020 |
| CVE-2020-12758 | high | 7.5 | 2% | 2020 |
| CVE-2020-7219 | high | 7.5 | 2% | 2020 |
| CVE-2019-12291 | high | 7.5 | 1% | 2019 |
| CVE-2023-3518 | high | 7.4 | 0% | 2023 |
| CVE-2019-9764 | high | 7.4 | 1% | 2019 |
| CVE-2021-41803 | high | 7.1 | 1% | 2022 |
| CVE-2025-11375 | medium | 6.5 | 0% | 2025 |
| CVE-2025-11374 | medium | 6.5 | 0% | 2025 |
| CVE-2022-40716 | medium | 6.5 | 1% | 2022 |
| CVE-2022-24687 | medium | 6.5 | 1% | 2022 |
| CVE-2021-38698 | medium | 6.5 | 1% | 2021 |
| CVE-2020-28053 | medium | 6.5 | 1% | 2020 |
| CVE-2024-10086 | medium | 6.1 | 0% | 2024 |
| CVE-2020-25864 | medium | 6.1 | 6% | 2021 |
| CVE-2023-5332 | medium | 5.9 | 1% | 2023 |
| CVE-2018-19653 | medium | 5.9 | 1% | 2018 |
| CVE-2022-3920 | medium | 5.3 | 1% | 2022 |
| CVE-2020-12797 | medium | 5.3 | 2% | 2020 |
| CVE-2020-7955 | medium | 5.3 | 1% | 2020 |
| CVE-2023-1297 | medium | 4.9 | 1% | 2023 |
| CVE-2023-0845 | medium | 4.9 | 1% | 2023 |
Is my HashiCorp Consul version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your HashiCorp Consul version → · Monitor HashiCorp Consul for new CVEs →
HashiCorp Consul vulnerabilities — frequently asked
How many known vulnerabilities does HashiCorp Consul have?
IsItPatched tracks 35 CVEs for HashiCorp Consul. 0 are critical-severity and 20 high-severity. These span every release line — what matters is whether the version you run is affected.
Does HashiCorp Consul have any actively-exploited vulnerabilities?
None of HashiCorp Consul's tracked CVEs are currently in CISA's KEV catalog — but new ones can be added at any time, so keep your version current.
What is the most severe HashiCorp Consul vulnerability?
Among tracked issues, CVE-2021-41805 (HIGH, CVSS 8.8) ranks highest — a Incorrect authorization weakness.
Is HashiCorp Consul safe to use?
It depends on the version. The latest supported HashiCorp Consul release clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: HashiCorp Consul security status · HashiCorp Consul end-of-life · actively-exploited CVEs. Always verify against HashiCorp's advisories — see our disclaimer.