CVE-2025-11375

EUVD-2025-36561
Consul and Consul Enterprise’s (“Consul”) event endpoint is vulnerable to denial of service (DoS) due to lack of maximum value on the Content Length header. This vulnerability, CVE-2025-11375, is fixed in Consul Community Edition 1.22.0 and Consul Enterprise 1.22.0, 1.21.6, 1.20.8 and 1.18.12.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
HashiCorpCNA
6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 4%
Affected Products (NVD)
VendorProductVersion
hashicorpconsul
𝑥
< 1.18.12
hashicorpconsul
𝑥
< 1.22.0
hashicorpconsul
1.19.0 ≤
𝑥
< 1.20.8
hashicorpconsul
1.21.0 ≤
𝑥
< 1.21.6
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
consul
bullseye
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
consul
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
dne
plucky
dne
questing
dne
Common Weakness Enumeration
References
https://discuss.hashicorp.com/t/hcsec-2025-28-consuls-event-endpoint-is-vulnerable-to-denial-of-service/76723