vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2025-11375

Consul's event endpoint is vulnerable to denial of service

MEDIUM
6.5
CVSS Score
Published: October 28, 2025 at 08:12 PM UTC
Updated: October 18, 2026 at 09:10 PM UTC
2 products affected across 1 vendorConsulConsul Enterprise

Using Consul by HashiCorp?

Get instant alerts when new vulnerabilities affect Consul - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Consul· Hashicorp
95%
v < 1.18.12v < 1.22.01.19.0 ≤ v < 1.20.81.21.0 ≤ v < 1.21.6
Affected range stops below 1.22.0, so it looks safe — our inference, not a vendor statement
Consul Enterprise· Hashicorp
90%
0 ≤ v < 1.22.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://discuss.hashicorp.com/t/hcsec-2025-28-consuls-event-endpoint-is-vulnerable-to-denial-of-service/76723

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMHashiCorp
Vector?

Quick Info

StatusANALYZED
CWE
CWE-770

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card