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    CVE-2021-28156

    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.

    Published:Apr 16, 2021
    Last Modified:Nov 21, 2024
    EPS:Apr 20, 2021
    EPSS Score:0.00493
    CVSS Score:7.5

    Affected Products

    Vendor
    Hashicorp
    Product
    Consul

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-15970 (CVSS 4.2) — Consul Community Edition and Consul Enterprise 1.20.1 through 2.0.2 are vulnerable to an L7 intention authoriz…
    CVE-2026-19017 (CVSS 6.8) — Consul Community Edition and Consul Enterprise 1.18.21 through 2.0.2 are vulnerable to a partial arbitrary fil…
    CVE-2026-19015 (CVSS 5.3) — Consul Community Edition and Consul Enterprise 1.2.0 through 2.0.2 are vulnerable to an uncontrolled resource …
    CVE-2026-19014 (CVSS 4.3) — Consul Community Edition and Consul Enterprise 1.17.0 through 2.0.2 are vulnerable to an uncontrolled resource…
    CVE-2026-19012 (CVSS 5.3) — Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial …
    CVE-2026-19016 (CVSS 4.2) — Consul Community Edition and Consul Enterprise 1.19.1 through 2.0.2 did not enforce the {{session:write}} ACL …
    CVE-2026-2808 (CVSS 6.8) — HashiCorp Consul and Consul Enterprise 1.18.20 up to 1.21.10 and 1.22.4 are vulnerable to arbitrary file read …
    CVE-2025-11374 (CVSS 6.5) — Consul and Consul Enterprise’s (“Consul”) key/value endpoint is vulnerable to denial of service (DoS) due to i…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High