CVE-2022-21698
published 2022-02-15CVE-2022-21698: client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP servers…
PriorityP346high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
5.99%
93.3th percentile
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.
Affected
33 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | golang-github-prometheus-client-golang | < golang-github-prometheus-client-golang 1.11.1-1 (bookworm) | golang-github-prometheus-client-golang 1.11.1-1 (bookworm) |
| fedoraproject | extra_packages_for_enterprise_linux | — | — |
| fedoraproject | extra_packages_for_enterprise_linux | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| github.com | prometheus_client_golang | >= 0 < 1.11.1 | 1.11.1 |
| msrc | azl3_application-gateway-kubernetes-ingress_1.7.2-2 | — | — |
| msrc | azl3_application-gateway-kubernetes-ingress_1.7.2-3 | — | — |
| msrc | azl3_keda_2.14.0-1 | — | — |
| msrc | azl3_keda_2.4.0-15 | — | — |
| msrc | azl3_moby-engine_20.10.25-3 | — | — |
| msrc | azl3_moby-engine_25.0.3-1 | — | — |
| msrc | azl3_multus_3.8-13 | — | — |
| msrc | azl3_multus_4.0.2-1 | — | — |
| msrc | azl3_node-problem-detector_0.8.10-18 | — | — |
| msrc | azl3_node-problem-detector_0.8.15-1 | — | — |
| msrc | azl3_prometheus-process-exporter_0.7.10-15 | — | — |
| msrc | azl3_prometheus-process-exporter_0.8.2-1 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_application-gateway-kubernetes-ingress_1.4.0-25 | — | — |
| msrc | cbl2_cri-o_1.22.3-14 | — | — |
| msrc | cbl2_kube-vip-cloud-provider_0.0.2-22 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
vendor_msrc7.5HIGH
vendor_redhat7.5HIGH
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OSV
Uncontrolled resource consumption in github.com/prometheus/client_golang
osv·2022-07-15
CVE-2022-21698 Uncontrolled resource consumption in github.com/prometheus/client_golang
Uncontrolled resource consumption in github.com/prometheus/client_golang
The Prometheus client_golang HTTP server is vulnerable to a denial of service attack when handling requests with non-standard HTTP methods.
In order to be affected, an instrumented software must use any of the promhttp.InstrumentHandler* middleware except RequestsInFlight; not filter any specific methods (e.g GET) before middleware; pass a metric with a "method" label name to a middleware; and not have any firewall/LB/proxy that filters away requests with unknown "method".
GHSA
Uncontrolled Resource Consumption in promhttp
ghsa·2022-02-16
CVE-2022-21698 [HIGH] CWE-400 Uncontrolled Resource Consumption in promhttp
Uncontrolled Resource Consumption in promhttp
This is the Go client library for Prometheus. It has two separate parts, one for instrumenting application code, and one for creating clients that talk to the Prometheus HTTP API. 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.
### Impact
HTTP server susceptible to a Denial of Service through unbounded cardinality, and potential memory exhaustion, when handling requests with non-standard HTTP methods.
### Affected Configuration
In order to be affected, an instrumented software must
* Use any of `promhttp.InstrumentHandler*` middleware except `RequestsInFlight`.
* Do not filter any specific methods (e.g GET) before mi
OSV
Uncontrolled Resource Consumption in promhttp
osv·2022-02-16
CVE-2022-21698 [HIGH] Uncontrolled Resource Consumption in promhttp
Uncontrolled Resource Consumption in promhttp
This is the Go client library for Prometheus. It has two separate parts, one for instrumenting application code, and one for creating clients that talk to the Prometheus HTTP API. 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.
### Impact
HTTP server susceptible to a Denial of Service through unbounded cardinality, and potential memory exhaustion, when handling requests with non-standard HTTP methods.
### Affected Configuration
In order to be affected, an instrumented software must
* Use any of `promhttp.InstrumentHandler*` middleware except `RequestsInFlight`.
* Do not filter any specific methods (e.g GET) before mi
OSV
CVE-2022-21698: client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP
osv·2022-02-15·CVSS 7.5
CVE-2022-21698 [HIGH] CVE-2022-21698: client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP
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
Red Hat
prometheus/client_golang: Denial of service using InstrumentHandlerCounter
vendor_redhat·2022-02-15·CVSS 7.5
CVE-2022-21698 [HIGH] CWE-772 prometheus/client_golang: Denial of service using InstrumentHandlerCounter
prometheus/client_golang: Denial of service using InstrumentHandlerCounter
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`. clien
Microsoft
Uncontrolled Resource Consumption in promhttp
vendor_msrc·2022-02-08·CVSS 7.5
CVE-2022-21698 [HIGH] CWE-770 Uncontrolled Resource Consumption in promhttp
Uncontrolled Resource Consumption in promhttp
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
GitHub_M: GitHub_M
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.mic
Debian
CVE-2022-21698: golang-github-prometheus-client-golang - client_golang is the instrumentation library for Go applications in Prometheus, ...
vendor_debian·2022·CVSS 7.5
CVE-2022-21698 [HIGH] CVE-2022-21698: golang-github-prometheus-client-golang - client_golang is the instrumentation library for Go applications in Prometheus, ...
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
No detection rules found.
No public exploits indexed.
https://github.com/prometheus/client_golang/pull/962https://github.com/prometheus/client_golang/pull/987https://github.com/prometheus/client_golang/releases/tag/v1.11.1https://github.com/prometheus/client_golang/security/advisories/GHSA-cg3q-j54f-5p7phttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2IK53GWZ475OQ6ENABKMJMTOBZG6LXUR/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2PFW6Q2LXXWTFRTMTRN4ZGADFRQPKJ3D/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36GUEPA5TPSC57DZTPYPBL6T7UPQ2FRH/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3L6GDN5S5QZSCFKWD3GKL2RDZQ6B4UWA/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4KDETHL5XCT6RZN2BBNOCEXRZ2W3SFU3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OGNAFVXSMTTT2UPH6CS3IH6L3KM42Q7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7V7I72LSQ3IET3QJR6QPAVGJZ4CBDLN5/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AK7CJBCGERCRXYUR2EWDSSDVAQMTAZGX/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLUJZV3HBP56ADXU6QH2V7RNYUPMVBXQ/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FY3N7H6VSDZM37B4SKM2PFFCUWU7QYWN/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HLAQRRGNSO5MYCPAXGPH2OCSHOGHSQMQ/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J5WPM42UR6XIBQNQPNQHM32X7S4LJTRX/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBMVIQFKQDSSTHVVJWJ4QH6TW3JVB7XZ/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MH6ALXEQXIFQRQFNJ5Y2MJ5DFPIX76VN/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RN7JGC2LVHPEGSJYODFUV5FEKPBVG4D7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SASRKYHT5ZFSVMJUQUG3UAEQRJYGJKAR/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKORFJTRRDJCWBTJPISKKCVMMMJBIRLG/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZY2SLWOQR4ZURQ7UBRZ7JIX6H6F5JHJR/https://github.com/prometheus/client_golang/pull/962https://github.com/prometheus/client_golang/pull/987https://github.com/prometheus/client_golang/releases/tag/v1.11.1https://github.com/prometheus/client_golang/security/advisories/GHSA-cg3q-j54f-5p7phttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2IK53GWZ475OQ6ENABKMJMTOBZG6LXUR/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2PFW6Q2LXXWTFRTMTRN4ZGADFRQPKJ3D/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36GUEPA5TPSC57DZTPYPBL6T7UPQ2FRH/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3L6GDN5S5QZSCFKWD3GKL2RDZQ6B4UWA/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4KDETHL5XCT6RZN2BBNOCEXRZ2W3SFU3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OGNAFVXSMTTT2UPH6CS3IH6L3KM42Q7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7V7I72LSQ3IET3QJR6QPAVGJZ4CBDLN5/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AK7CJBCGERCRXYUR2EWDSSDVAQMTAZGX/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLUJZV3HBP56ADXU6QH2V7RNYUPMVBXQ/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FY3N7H6VSDZM37B4SKM2PFFCUWU7QYWN/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HLAQRRGNSO5MYCPAXGPH2OCSHOGHSQMQ/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J5WPM42UR6XIBQNQPNQHM32X7S4LJTRX/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBMVIQFKQDSSTHVVJWJ4QH6TW3JVB7XZ/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MH6ALXEQXIFQRQFNJ5Y2MJ5DFPIX76VN/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RN7JGC2LVHPEGSJYODFUV5FEKPBVG4D7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SASRKYHT5ZFSVMJUQUG3UAEQRJYGJKAR/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKORFJTRRDJCWBTJPISKKCVMMMJBIRLG/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZY2SLWOQR4ZURQ7UBRZ7JIX6H6F5JHJR/
2022-02-15
Published