7.5

CVE-2021-28156: hashicorp consul

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2021-28156
Published 20-04-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-28156 is a high (CVSS 7.5) vulnerability in hashicorp consul. EPSS estimates a 2.29% chance of exploitation in the next 30 days, higher than 82.9% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.29%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 20-04-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

HashiCorp Consul Enterprise version 1.8.0 up to 1.9.4 audit log can be bypassed by specifically crafted HTTP events. Fixed in 1.9.5, and 1.8.10.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.29%

Chance of exploitation in the next 30 days

Percentile

83%

Versus all other CVEs

30-day change

0.00 pp

From 2.29% on 20-09-2026

20-09-202620-10-2026
EPSS score
2.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Hashicorp1 product
  • consul≥ 1.8.0, < 1.8.10 | ≥ 1.9.0, < 1.9.5
Ubuntu1 product
  • consulAll versions (No fix recorded)

2 vendors · 2 products

References

7 links