CVE-2022-21698

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Source
https://cve.org/CVERecord?id=CVE-2022-21698
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-21698.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-21698
Aliases
Downstream
Related
Published
2022-02-15T00:00:00Z
Modified
2026-08-24T17:42:28Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Uncontrolled Resource Consumption in promhttp
Details

client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP servers and clients. In client_golang prior to version 1.11.1, HTTP server is susceptible to a Denial of Service through unbounded cardinality, and potential memory exhaustion, when handling requests with non-standard HTTP methods. In order to be affected, an instrumented software must use any of promhttp.InstrumentHandler* middleware except RequestsInFlight; not filter any specific methods (e.g GET) before middleware; pass metric with method label name to our middleware; and not have any firewall/LB/proxy that filters away requests with unknown method. client_golang version 1.11.1 contains a patch for this issue. Several workarounds are available, including removing the method label name from counter/gauge used in the InstrumentHandler; turning off affected promhttp handlers; adding custom middleware before promhttp handler that will sanitize the request method given by Go http.Request; and using a reverse proxy or web application firewall, configured to only allow a limited set of methods.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21698.json"
}
References

Affected packages

Git / github.com/prometheus/client_golang

Affected ranges

Type
GIT
Repo
https://github.com/prometheus/client_golang
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
989baa30fe956631907493ccee1f8e7708660d96
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:prometheus:client_golang:*:*:*:*:*:go:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.11.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.1.0
0.2.0
0.3.0
0.3.1
0.3.2
0.5.0
0.6.0
0.7.0
v0.*
v0.8.0
v0.9.0
v0.9.0-pre1
v0.9.1
v0.9.2
v0.9.3
v0.9.4
v1.*
v1.0.0
v1.1.0
v1.10.0
v1.11.0
v1.2.0
v1.2.1
v1.3.0
v1.4.0
v1.4.1
v1.5.0
v1.5.1
v1.6.0
v1.7.0
v1.7.1
v1.8.0
v1.9.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-21698.json"