CVE-2022-24685Network attack vector

Server CPU exhaustion via malformed HCL parsing

Published Feb 28, 2022 · Updated Aug 3, 2024

Resource exhaustion in HashiCorp Nomad and Nomad Enterprise 1.0.17, 1.1.11, and 1.2.5 allows remote attackers to interrupt servers. The /v1/jobs/parse handler evaluates malformed HCL with server-side parsing logic that consumes excessive CPU on Nomad server agents. Network access to the Nomad API is sufficient because the affected endpoint does not require an ACL token, and the resulting CPU consumption can interrupt service.

CVSS severity7.5
High
EPSS probability1.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in HashiCorp Nomad and Nomad Enterprise 1.0.17, 1.1.11, and 1.2.5 allows remote attackers to interrupt servers. The /v1/jobs/parse handler evaluates malformed HCL with server-side parsing logic that consumes excessive CPU on Nomad server agents. Network access to the Nomad API is sufficient because the affected endpoint does not require an ACL token, and the resulting CPU consumption can interrupt service.

The record

CVE
CVE-2022-24685
Published
Feb 28, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-770, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5UbuntuCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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