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CVE-2024-6468

Vault Vulnerable to Denial of Service When Setting a Proxy Protocol Behavior

HIGH
7.5
CVSS Score
Published: July 11, 2024 at 08:40 PM UTC
Updated: June 17, 2026 at 08:18 AM UTC
1 product affected across 1 vendorVault

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Vault and Vault Enterprise did not properly handle requests originating from unauthorized IP addresses when the TCP listener option, proxy_protocol_behavior, was set to deny_unauthorized. When receiving a request from a source IP address that was not listed in proxy_protocol_authorized_addrs, the Vault API server would shut down and no longer respond to any HTTP requests, potentially resulting in denial of service. While this bug also affected versions of Vault up to 1.17.1 and 1.16.5, a separate regression in those release series did not allow Vault operators to configure the deny_unauthorized option, thus not allowing the conditions for the denial of service to occur. Fixed in Vault and Vault Enterprise 1.17.2, 1.16.6, and 1.15.12.

Affected

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

Vault· Hashicorp
95%
1.10.0 ≤ v < 1.15.111.10.0 ≤ v < 1.15.121.16.0 ≤ v < 1.16.61.17.0 ≤ v < 1.17.21.10.0
Affected range stops below 1.15.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.15.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.16.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.17.2, so it looks safe — our inference, not a vendor statement

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: [email protected]
https://discuss.hashicorp.com/t/hcsec-2024-14-vault-vulnerable-to-denial-of-service-when-setting-a-proxy-protocol-behavior/68518

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

7.5HIGHHashiCorp
Vector?

Quick Info

StatusANALYZED
CWE
CWE-703

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