CyberSecBulletin

Prometheus vulnerabilities

We track 5 vulnerabilities in Prometheus products across 4 products. 5 are rated high or critical, and none are known to be exploited. The most recent was published on May 4, 2026.

5vulnerabilities
0critical
5high
0exploited
7.8average CVSS score

Latest Prometheus vulnerabilities

  • 7.5 High severity

    prometheus: Uncontrolled Resource Consumption

    CVE-2026-42154Prometheus

    Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint (/api/v1/read) does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An

  • 7.5 High severity

    prometheus: Exposure of Sensitive Information to an Unauthorized Actor

    CVE-2026-42151Prometheus

    Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the client_secret field in the Azure AD remote write OAuth configuration (storage/remote/azuread) was typed as string instead of Secret. Prometheus red

  • 7.5 High severity

    Blackbox Exporter: Server-Side Request Forgery

    CVE-2023-26735Prometheus

    blackbox_exporter v0.23.0 was discovered to contain an access control issue in its probe interface. This vulnerability allows attackers to detect intranet ports and services, as well as download resources. NOTE: this is disputed by third parties because authen

  • 8.8 High severity

    exporter-toolkit: Improper Authentication

    CVE-2022-46146PrometheusEPSS 1.29%

    Prometheus Exporter Toolkit is a utility package to build exporters. Prior to versions 0.7.2 and 0.8.2, if someone has access to a Prometheus web.yml file and users' bcrypted passwords, they can bypass security by poisoning the built-in authentication cache. V

  • 7.5 High severity

    client_golang: Allocation of Resources Without Limits or Throttling

    CVE-2022-21698PrometheusEPSS 5.99%

    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 Serv