CVE-2022-21698

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 6.0% (93rd percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 6.0%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
51
EG Risk 51/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation6% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
6.0%
EPSS %ILE
93rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

February 15, 2022

Last Modified

November 21, 2024

References (44)

Vendor Advisories for CVE-2022-21698(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(29)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatmulticluster-engine/kube-rbac-proxy-mce-rhel9:17662743242026-01-15redhat
redhatmulticluster-engine/kube-rbac-proxy-mce-rhel9:v2.62025-12-17redhat
redhatrhacm2/rbac-query-proxy-rhel9:v2.122025-12-03redhat
redhatmulticluster-engine/kube-rbac-proxy-mce-rhel9:v2.72025-12-03redhat
redhatdevspaces/devspaces-rhel8-operator:3.15-102024-07-18redhat
redhatamq7/amq-broker-rhel8-operator-bundle:7.12.0-102024-05-21redhat
redhatcontainer-tools:3.0-8040020240104111259.c0c392d52024-01-30redhat
redhatoadp/oadp-velero-rhel8:1.1.6-72023-09-20redhat
redhatopenshift4/ose-vsphere-csi-driver-syncer-rhel8:v4.13.0-202304190216.p0.g6f4295b.assembly.stream2023-05-17redhat
redhatopenshift4/ose-multus-admission-controller:v4.11.0-202304192028.p0.gb876064.assembly.stream2023-05-02redhat
redhatopenshift4/ose-baremetal-rhel8-operator:v4.11.0-202303061754.p0.g55cd252.assembly.stream2023-03-14redhat
redhatopenshift4/ose-helm-operator:v4.11.0-202302061916.p0.g1974dfd.assembly.stream2023-02-15redhat
redhatopenshift4/ose-operator-sdk-rhel8:v4.11.0-202301241446.p0.g1974dfd.assembly.stream2023-02-07redhat
redhatopenshift4-wincw/windows-machine-config-rhel8-operator:7.0.0-222023-01-30redhat
redhatopenshift4/ose-ibm-vpc-block-csi-driver-rhel8:v4.12.0-202301042354.p0.g2364e6a.assembly.stream2023-01-17redhat
redhatgrafana-0:7.5.15-3.el92022-11-15redhat
redhatcontainer-tools:3.0-8070020220802115906.390774192022-11-08redhat
redhatgrafana-0:7.5.15-3.el82022-11-08redhat
redhatoadp/oadp-rhel8-operator:1.0.5-162022-10-31redhat
redhatopenshift4/ose-sriov-network-webhook:v4.11.0-202209130958.p0.gb4f9fbd.assembly.stream2022-09-20redhat
redhatoadp/oadp-registry-rhel8:1.0.4-62022-09-13redhat
redhatoadp/oadp-velero-plugin-rhel8:1.1.0-202022-09-01redhat
redhatodf4/odf-rhel8-operator:v4.11.0-272022-08-24redhat
redhatopenshift-logging/log-file-metric-exporter-rhel8:v1.1.0-382022-08-18redhat
redhatetcd-0:3.3.23-10.el8ost2022-08-15redhat
redhatopenshift4/ovirt-csi-driver-rhel8-operator:v4.11.0-202208020235.p0.g7a30e38.assembly.stream2022-08-10redhat
redhatopenshift-serverless-clients-0:1.3.1-4.el82022-08-10redhat
redhatopenshift-serverless-1-tech-preview/eventing-kafka-broker-webhook-rhel8:1.3.2-22022-08-10redhat
redhatopenshift-clients-0:4.11.0-202207291716.p0.g7075089.assembly.stream.el82022-08-10redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
golang-github-prometheus-client-golang1.11.0-1 ... 1.9.0-2 (45 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
golang-github-prometheus-client-golang—
  • every version up to 1.11.1-1: fixed in 1.11.1-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
golang-github-prometheus-client-golang—
  • every version up to 1.11.1-1: fixed in 1.11.1-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
golang-github-prometheus-client-golang—
  • every version up to 1.11.1-1: fixed in 1.11.1-1
—
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/prometheus/client_golang—
  • every version up to 1.11.1: fixed in 1.11.1
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(22)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 25× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 169 total refreshes for this CVE.

  1. 2026-10-09 20:04 UTCEPSS rescore
  2. 2026-10-08 16:40 UTCEPSS rescore
  3. 2026-10-07 23:45 UTCEPSS rescore
  4. 2026-10-06 15:14 UTCEPSS rescore
  5. 2026-10-05 17:40 UTCEPSS rescore
  6. 2026-10-04 23:19 UTCEPSS rescore
  7. 2026-10-03 14:23 UTCEPSS rescore
  8. 2026-10-03 14:22 UTCEPSS rescore
  9. 2026-09-30 15:48 UTCEG score recompute
  10. 2026-09-30 15:00 UTCEPSS rescore
  11. 2026-09-29 15:15 UTCEPSS rescore
  12. 2026-09-28 13:48 UTCEPSS rescore
  13. 2026-09-27 13:41 UTCEPSS rescore
  14. 2026-09-26 00:22 UTCEPSS rescore
  15. 2026-09-25 06:05 UTCOSV refresh
  16. 2026-09-24 14:00 UTCEPSS rescore
  17. 2026-09-23 13:45 UTCEPSS rescore
  18. 2026-09-20 20:13 UTCEPSS rescore
  19. 2026-09-17 19:23 UTCEPSS rescore
  20. 2026-09-16 14:05 UTCEPSS rescore
  21. 2026-09-15 03:06 UTCEPSS rescore
  22. 2026-09-13 16:43 UTCEPSS rescore
  23. 2026-09-12 14:57 UTCEPSS rescore
  24. 2026-09-11 14:49 UTCEPSS rescore
  25. 2026-09-11 09:33 UTCEPSS rescore
Show 75 more
  1. 2026-09-08 21:57 UTCEPSS rescore
  2. 2026-09-06 13:45 UTCEPSS rescore
  3. 2026-09-05 21:30 UTCOSV refresh
  4. 2026-09-05 15:25 UTCEPSS rescore
  5. 2026-09-04 13:57 UTCEPSS rescore
  6. 2026-09-04 05:04 UTCEPSS rescore
  7. 2026-09-02 14:09 UTCEPSS rescore
  8. 2026-09-01 13:51 UTCEPSS rescore
  9. 2026-08-30 19:14 UTCEPSS rescore
  10. 2026-08-30 01:19 UTCEPSS rescore
  11. 2026-08-28 21:38 UTCEPSS rescore
  12. 2026-08-27 14:22 UTCEPSS rescore
  13. 2026-08-26 14:43 UTCEPSS rescore
  14. 2026-08-25 13:46 UTCEPSS rescore
  15. 2026-08-25 13:46 UTCEPSS rescore
  16. 2026-08-24 14:13 UTCEPSS rescore
  17. 2026-08-21 23:46 UTCEPSS rescore
  18. 2026-08-20 22:52 UTCEPSS rescore
  19. 2026-08-19 17:01 UTCEPSS rescore
  20. 2026-08-19 08:29 UTCOSV refresh
  21. 2026-08-18 13:45 UTCEPSS rescore
  22. 2026-08-17 13:44 UTCEPSS rescore
  23. 2026-08-16 14:53 UTCEPSS rescore
  24. 2026-08-16 02:11 UTCEPSS rescore
  25. 2026-08-15 01:27 UTCEPSS rescore
  26. 2026-08-13 21:57 UTCEPSS rescore
  27. 2026-08-12 13:48 UTCEPSS rescore
  28. 2026-08-09 13:44 UTCEPSS rescore
  29. 2026-08-08 16:34 UTCEPSS rescore
  30. 2026-08-07 16:24 UTCEPSS rescore
  31. 2026-08-06 13:44 UTCEPSS rescore
  32. 2026-08-05 19:15 UTCEPSS rescore
  33. 2026-08-04 10:34 UTCEPSS rescore
  34. 2026-08-04 03:57 UTCOSV refresh
  35. 2026-08-03 10:33 UTCEPSS rescore
  36. 2026-08-02 02:24 UTCEPSS rescore
  37. 2026-08-01 04:13 UTCEPSS rescore
  38. 2026-07-30 16:25 UTCEPSS rescore
  39. 2026-07-30 01:28 UTCEPSS rescore
  40. 2026-07-28 15:33 UTCEPSS rescore
  41. 2026-07-26 14:52 UTCEPSS rescore
  42. 2026-07-26 14:52 UTCEPSS rescore
  43. 2026-07-25 14:15 UTCEPSS rescore
  44. 2026-07-24 14:15 UTCEPSS rescore
  45. 2026-07-23 14:16 UTCEPSS rescore
  46. 2026-07-23 02:08 UTCEG score recompute
  47. 2026-07-22 22:54 UTCEG score recompute
  48. 2026-07-22 14:06 UTCEPSS rescore
  49. 2026-07-22 14:06 UTCEPSS rescore
  50. 2026-07-21 15:22 UTCEPSS rescore
  51. 2026-07-21 15:22 UTCEPSS rescore
  52. 2026-07-20 17:05 UTCEPSS rescore
  53. 2026-07-19 14:29 UTCEPSS rescore
  54. 2026-07-19 02:27 UTCEPSS rescore
  55. 2026-07-18 10:02 UTCEPSS rescore
  56. 2026-07-18 10:02 UTCEPSS rescore
  57. 2026-07-17 23:59 UTCOSV refresh
  58. 2026-07-16 17:00 UTCEPSS rescore
  59. 2026-07-16 17:00 UTCEPSS rescore
  60. 2026-07-15 16:56 UTCEPSS rescore
  61. 2026-07-15 16:56 UTCEPSS rescore
  62. 2026-07-15 01:58 UTCEPSS rescore
  63. 2026-07-15 01:58 UTCEPSS rescore
  64. 2026-07-13 22:27 UTCEPSS rescore
  65. 2026-07-12 05:44 UTCEPSS rescore
  66. 2026-07-11 08:25 UTCEPSS rescore
  67. 2026-07-09 19:07 UTCEPSS rescore
  68. 2026-07-08 15:12 UTCEPSS rescore
  69. 2026-07-07 13:44 UTCEPSS rescore
  70. 2026-07-06 16:25 UTCEPSS rescore
  71. 2026-07-06 16:25 UTCEPSS rescore
  72. 2026-07-06 02:21 UTCEPSS rescore
  73. 2026-07-05 02:28 UTCEPSS rescore
  74. 2026-07-04 06:29 UTCEPSS rescore
  75. 2026-07-04 06:29 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-21698?
CVE-2022-21698 is a high vulnerability published on February 15, 2022. clientgolang is the instrumentation library for Go applications in Prometheus, and the promhttp package in clientgolang provides tooling around HTTP servers and clients. In clientgolang prior to version 1.11.1, HTTP server is susceptible to a Denial of Service through unbounded cardinality, and…
When was CVE-2022-21698 disclosed?
CVE-2022-21698 was first published on February 15, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-21698 actively exploited?
CVE-2022-21698 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.0% probability of exploitation in the next 30 days (93rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-21698?
CVE-2022-21698 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2022-21698?
A fix for CVE-2022-21698 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-21698 are linked in the Vendor Advisories panel on this page.

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