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5 vulnerabilities found for prometheus by prometheus

CVE-2026-44903 (GCVE-0-2026-44903)
Vulnerability from cvelistv5
Published
2026-05-26 21:27
Modified
2026-05-27 14:20
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
Prometheus is an open-source monitoring system and time series database. From 2.49.0 to before 3.5.3 and 3.11.3, in the Prometheus server's legacy web UI (enabled via the command-line flag --enable-feature=old-ui), the histogram heatmap chart view does not escape le label values when inserting them into the HTML for use as axis tick mark labels. An attacker who can inject crafted metrics can execute JavaScript in the browser of any Prometheus user who views the metric in the heatmap chart UI. This vulnerability is fixed in 3.5.3 and 3.11.3.
Impacted products
Vendor Product Version
prometheus prometheus Version: >= 2.49.0, < 3.5.3
Version: >= 3.6.0-rc.0, < 3.11.3
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-44903",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-27T14:19:11.558921Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-27T14:20:35.919Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "prometheus",
          "vendor": "prometheus",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.49.0, \u003c 3.5.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.6.0-rc.0, \u003c 3.11.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Prometheus is an open-source monitoring system and time series database. From 2.49.0 to before 3.5.3 and 3.11.3, in the Prometheus server\u0027s legacy web UI (enabled via the command-line flag --enable-feature=old-ui), the histogram heatmap chart view does not escape le label values when inserting them into the HTML for use as axis tick mark labels. An attacker who can inject crafted metrics can execute JavaScript in the browser of any Prometheus user who views the metric in the heatmap chart UI. This vulnerability is fixed in 3.5.3 and 3.11.3."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-26T21:27:18.597Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/prometheus/prometheus/security/advisories/GHSA-fw8g-cg8f-9j28",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/prometheus/prometheus/security/advisories/GHSA-fw8g-cg8f-9j28"
        },
        {
          "name": "https://github.com/prometheus/prometheus/commit/38f23b9075ced1de2b82d2dad8b2bebb1ecd5b7d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prometheus/prometheus/commit/38f23b9075ced1de2b82d2dad8b2bebb1ecd5b7d"
        }
      ],
      "source": {
        "advisory": "GHSA-fw8g-cg8f-9j28",
        "discovery": "UNKNOWN"
      },
      "title": "Prometheus: Stored XSS via crafted histogram bucket label values in the heatmap display of the old Prometheus web UI"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-44903",
    "datePublished": "2026-05-26T21:27:18.597Z",
    "dateReserved": "2026-05-07T21:50:33.547Z",
    "dateUpdated": "2026-05-27T14:20:35.919Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-42154 (GCVE-0-2026-42154)
Vulnerability from cvelistv5
Published
2026-05-04 18:13
Modified
2026-05-04 20:19
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-789 - Memory Allocation with Excessive Size Value
Summary
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 unauthenticated attacker can send a small payload that causes a huge heap allocation per request. Under concurrent load this can exhaust available memory and crash the Prometheus process. This issue has been patched in versions 3.5.3 and 3.11.3.
Impacted products
Vendor Product Version
prometheus prometheus Version: < 3.5.3
Version: >= 3.6.0, < 3.11.3
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-42154",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-04T20:18:48.754025Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-04T20:19:13.876Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "prometheus",
          "vendor": "prometheus",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.5.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.6.0, \u003c 3.11.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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 unauthenticated attacker can send a small payload that causes a huge heap allocation per request. Under concurrent load this can exhaust available memory and crash the Prometheus process. This issue has been patched in versions 3.5.3 and 3.11.3."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-789",
              "description": "CWE-789: Memory Allocation with Excessive Size Value",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-04T18:13:12.340Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/prometheus/prometheus/security/advisories/GHSA-8rm2-7qqf-34qm",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/prometheus/prometheus/security/advisories/GHSA-8rm2-7qqf-34qm"
        },
        {
          "name": "https://github.com/prometheus/prometheus/pull/18584",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prometheus/prometheus/pull/18584"
        },
        {
          "name": "https://github.com/prometheus/prometheus/pull/18585",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prometheus/prometheus/pull/18585"
        },
        {
          "name": "https://github.com/prometheus/prometheus/releases/tag/v3.11.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prometheus/prometheus/releases/tag/v3.11.3"
        },
        {
          "name": "https://github.com/prometheus/prometheus/releases/tag/v3.5.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prometheus/prometheus/releases/tag/v3.5.3"
        }
      ],
      "source": {
        "advisory": "GHSA-8rm2-7qqf-34qm",
        "discovery": "UNKNOWN"
      },
      "title": "Prometheus: remote read endpoint allows denial of service via crafted snappy payload"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-42154",
    "datePublished": "2026-05-04T18:13:12.340Z",
    "dateReserved": "2026-04-24T17:15:21.835Z",
    "dateUpdated": "2026-05-04T20:19:13.876Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-42151 (GCVE-0-2026-42151)
Vulnerability from cvelistv5
Published
2026-05-04 18:12
Modified
2026-05-04 19:55
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-312 - Cleartext Storage of Sensitive Information
Summary
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 redacts fields of type Secret when serving the configuration via the /-/config HTTP API endpoint. Because the field was a plain string, the Azure OAuth client secret was exposed in plaintext to any user or process with access to that endpoint. This issue has been patched in versions 3.5.3 and 3.11.3.
Impacted products
Vendor Product Version
prometheus prometheus Version: < 3.5.3
Version: >= 3.6.0, < 3.11.3
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-42151",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-04T19:54:39.314002Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-04T19:55:09.255Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "prometheus",
          "vendor": "prometheus",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.5.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.6.0, \u003c 3.11.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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 redacts fields of type Secret when serving the configuration via the /-/config HTTP API endpoint. Because the field was a plain string, the Azure OAuth client secret was exposed in plaintext to any user or process with access to that endpoint. This issue has been patched in versions 3.5.3 and 3.11.3."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-312",
              "description": "CWE-312: Cleartext Storage of Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-04T18:12:16.917Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/prometheus/prometheus/security/advisories/GHSA-wg65-39gg-5wfj",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/prometheus/prometheus/security/advisories/GHSA-wg65-39gg-5wfj"
        },
        {
          "name": "https://github.com/prometheus/prometheus/pull/18587",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prometheus/prometheus/pull/18587"
        },
        {
          "name": "https://github.com/prometheus/prometheus/pull/18590",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prometheus/prometheus/pull/18590"
        },
        {
          "name": "https://github.com/prometheus/prometheus/releases/tag/v3.11.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prometheus/prometheus/releases/tag/v3.11.3"
        },
        {
          "name": "https://github.com/prometheus/prometheus/releases/tag/v3.5.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prometheus/prometheus/releases/tag/v3.5.3"
        }
      ],
      "source": {
        "advisory": "GHSA-wg65-39gg-5wfj",
        "discovery": "UNKNOWN"
      },
      "title": "Prometheus Azure AD remote write OAuth client secret exposed via config API"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-42151",
    "datePublished": "2026-05-04T18:12:16.917Z",
    "dateReserved": "2026-04-24T17:15:21.835Z",
    "dateUpdated": "2026-05-04T19:55:09.255Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-40179 (GCVE-0-2026-40179)
Vulnerability from cvelistv5
Published
2026-04-15 22:26
Modified
2026-04-16 14:21
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
Prometheus is an open-source monitoring system and time series database. Versions 3.0 through 3.5.1 and 3.6.0 through 3.11.1 have stored cross-site scripting vulnerabilities in multiple components of the Prometheus web UI where metric names and label values are injected into innerHTML without escaping. In both the Mantine UI and old React UI, chart tooltips on the Graph page render metric names containing HTML/JavaScript without sanitization. In the old React UI, the Metric Explorer fuzzy search results use dangerouslySetInnerHTML without escaping, and heatmap cell tooltips interpolate le label values without sanitization. With Prometheus v3.x defaulting to UTF-8 metric and label name validation, characters like <, >, and " are now valid in metric names and labels. An attacker who can inject metrics via a compromised scrape target, remote write, or OTLP receiver endpoint can execute arbitrary JavaScript in the browser of any Prometheus user who views the metric in the Graph UI, potentially enabling configuration exfiltration, data deletion, or Prometheus shutdown depending on enabled flags. This issue has been fixed in versions 3.5.2 and 3.11.2. If developers are unable to immediately update, the following workarounds are recommended: ensure that the remote write receiver (--web.enable-remote-write-receiver) and the OTLP receiver (--web.enable-otlp-receiver) are not exposed to untrusted sources; verify that all scrape targets are trusted and not under attacker control; avoid enabling admin or mutating API endpoints (e.g., --web.enable-admin-api or --web.enable-lifecycle) in environments where untrusted data may be ingested; and refrain from clicking untrusted links, particularly those containing functions such as label_replace, as they may generate poisoned label names and values.
Impacted products
Vendor Product Version
prometheus prometheus Version: >= 3.0.0, < 3.5.2
Version: >= 3.6.0, < 3.11.2
Version: < 0.311.2-0.20260410083055-07c6232d159b
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-40179",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-16T14:21:31.807163Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-16T14:21:42.130Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "prometheus",
          "vendor": "prometheus",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.5.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.6.0, \u003c 3.11.2"
            },
            {
              "status": "affected",
              "version": "\u003c 0.311.2-0.20260410083055-07c6232d159b"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Prometheus is an open-source monitoring system and time series database. Versions 3.0 through 3.5.1 and 3.6.0 through 3.11.1 have stored cross-site scripting vulnerabilities in multiple components of the Prometheus web UI where metric names and label values are injected into innerHTML without escaping. In both the Mantine UI and old React UI, chart tooltips on the Graph page render metric names containing HTML/JavaScript without sanitization. In the old React UI, the Metric Explorer fuzzy search results use dangerouslySetInnerHTML without escaping, and heatmap cell tooltips interpolate le label values without sanitization. With Prometheus v3.x defaulting to UTF-8 metric and label name validation, characters like \u003c, \u003e, and \" are now valid in metric names and labels. An attacker who can inject metrics via a compromised scrape target, remote write, or OTLP receiver endpoint can execute arbitrary JavaScript in the browser of any Prometheus user who views the metric in the Graph UI, potentially enabling configuration exfiltration, data deletion, or Prometheus shutdown depending on enabled flags. This issue has been fixed in versions 3.5.2 and 3.11.2. If developers are unable to immediately update, the following workarounds are recommended: ensure that the remote write receiver (--web.enable-remote-write-receiver) and the OTLP receiver (--web.enable-otlp-receiver) are not exposed to untrusted sources; verify that all scrape targets are trusted and not under attacker control; avoid enabling admin or mutating API endpoints (e.g., --web.enable-admin-api or --web.enable-lifecycle) in environments where untrusted data may be ingested; and refrain from clicking untrusted links, particularly those containing functions such as label_replace, as they may generate poisoned label names and values."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-15T22:26:46.909Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/prometheus/prometheus/security/advisories/GHSA-vffh-x6r8-xx99",
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CVE-2021-29622 (GCVE-0-2021-29622)
Vulnerability from cvelistv5
Published
2021-05-19 20:00
Modified
2024-08-03 22:11
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Summary
Prometheus is an open-source monitoring system and time series database. In 2.23.0, Prometheus changed its default UI to the New ui. To ensure a seamless transition, the URL's prefixed by /new redirect to /. Due to a bug in the code, it is possible for an attacker to craft an URL that can redirect to any other URL, in the /new endpoint. If a user visits a prometheus server with a specially crafted address, they can be redirected to an arbitrary URL. The issue was patched in the 2.26.1 and 2.27.1 releases. In 2.28.0, the /new endpoint will be removed completely. The workaround is to disable access to /new via a reverse proxy in front of Prometheus.
Impacted products
Vendor Product Version
prometheus prometheus Version: >= 2.23.0, < 2.27.1
Create a notification for this product.
Show details on NVD website


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