Vulnerability-Lookup

RHSA-2026:89732

Vulnerability from csaf_opensuse - Published: 2026-10-26 01:46 - Updated: 2026-11-01 00:20

Summary

Red Hat Security Advisory: grafana security update

Severity

Important

Notes

Topic: An update for grafana is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB. Security Fix(es): * grafana: Grafana: Information disclosure vulnerability in Unified Alerting (CVE-2026-17183) * net/textproto: mime/multipart: golang: golang: Denial of Service via memory limit bypass in multipart form parsing (CVE-2026-94440) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-17183

A flaw was found in Grafana's Unified Alerting component. An authenticated user with permissions to create or edit alert rules in a folder can bypass datasource query permissions. By manipulating the `queryType` field, an attacker can execute queries against datasources they are not authorized to access, leading to the disclosure of sensitive data. This vulnerability arises from inconsistent query classification between authorization and execution paths.

7.1 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization

Affected products

Fixed 17 products

Product	Version	Remediation
Unresolved product id: AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.src	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.x86_64	—	Vendor Fix fix Workaround

Threats

Impact Important

CVE-2026-94440

A flaw was found in the mime/multipart and net/textproto packages in Go. A remote attacker could exploit this vulnerability by submitting a crafted multipart form request that bypasses configured memory limits when the remaining boundary limit is small. This issue allows the application to read an arbitrarily long line into memory, leading to excessive resource consumption and a Denial of Service (DoS).

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-770 - Allocation of Resources Without Limits or Throttling

Affected products

Fixed 17 products, the same list as for CVE-2026-17183

Threats

Impact Moderate

References

18 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:89732	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=2519801	external
https://bugzilla.redhat.com/show_bug.cgi?id=2548341	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-17183	self
https://bugzilla.redhat.com/show_bug.cgi?id=2519801	external
https://www.cve.org/CVERecord?id=CVE-2026-17183	external
https://nvd.nist.gov/vuln/detail/CVE-2026-17183	external
https://grafana.com/security/security-advisories/…	external
https://access.redhat.com/security/cve/CVE-2026-94440	self
https://bugzilla.redhat.com/show_bug.cgi?id=2548341	external
https://www.cve.org/CVERecord?id=CVE-2026-94440	external
https://nvd.nist.gov/vuln/detail/CVE-2026-94440	external
https://go.dev/cl/847307	external
https://go.dev/issue/81741	external
https://groups.google.com/g/golang-announce/c/U2f…	external
https://pkg.go.dev/vuln/GO-2026-6608	external

JSON

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          "text": "This vulnerability is rated as having a Moderate severity for Red Hat products because, while an unauthenticated remote attacker can trigger excessive memory consumption leading to a denial of service, exploitation cannot lead to code execution or information disclosure. The issue specifically threatens Go-based services and daemons that accept and process incoming multipart HTTP form payloads. Applications built with Go that do not expose web interfaces or parse multipart request streams are unaffected by this flaw.",
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          "summary": "https://go.dev/issue/81741",
          "url": "https://go.dev/issue/81741"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI",
          "url": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-6608",
          "url": "https://pkg.go.dev/vuln/GO-2026-6608"
        }
      ],
      "release_date": "2026-10-08T22:53:58.959000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-26T01:46:55+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.aarch64",
            "AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.ppc64le",
            "AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.s390x",
            "AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.src",
            "AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.x86_64",
            "AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.aarch64",
            "AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.ppc64le",
            "AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.s390x",
            "AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.x86_64",
            "AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.aarch64",
            "AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.ppc64le",
            "AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.s390x",
            "AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.x86_64",
            "AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.aarch64",
            "AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.ppc64le",
            "AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.s390x",
            "AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:89732"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "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"
          },
          "products": [
            "AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.aarch64",
            "AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.ppc64le",
            "AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.s390x",
            "AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.src",
            "AppStream-10.2.Z:grafana-0:10.2.6-28.el10_2.9.x86_64",
            "AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.aarch64",
            "AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.ppc64le",
            "AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.s390x",
            "AppStream-10.2.Z:grafana-debuginfo-0:10.2.6-28.el10_2.9.x86_64",
            "AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.aarch64",
            "AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.ppc64le",
            "AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.s390x",
            "AppStream-10.2.Z:grafana-debugsource-0:10.2.6-28.el10_2.9.x86_64",
            "AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.aarch64",
            "AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.ppc64le",
            "AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.s390x",
            "AppStream-10.2.Z:grafana-selinux-0:10.2.6-28.el10_2.9.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "net/textproto: mime/multipart: golang: golang: Denial of Service via memory limit bypass in multipart form parsing"
    }
  ]
}

CVE-2026-17183 (GCVE-0-2026-17183)

Vulnerability from cvelistv5 – Published: 2026-08-19 17:30 – Updated: 2026-08-27 17:22

Title

CVE-2026-17183 CVE Record

Summary

An authenticated user with permission to create or edit alert rules can bypass datasource query authorization by marking an alert rule query as a server-side expression while referencing a real datasource UID (incorrect authorization). This can expose data accessible through Grafana's configured datasource credentials to users who lack permission to query that datasource.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-19 18:40 UTC

CWE

CWE-863 - INCORRECT AUTHORIZATION

Assigner

GRAFANA CNA under the mitre root

CNA scorecard C 71/100 over 54 records in the last 180 days details

References

1 reference

URL	Tags
https://grafana.com/security/security-advisories/…	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
Grafana	Grafana OSS	Affected: 8.4.0 , < 12.3.11 (semver) Affected: 12.4.0 , < 12.4.9 (semver) Affected: 13.0.0 , < 13.0.7 (semver) Affected: 13.1.0 , < 13.1.4 (semver)
Grafana	Grafana Enterprise	Affected: 8.4.0 , < 12.3.11 (semver) Affected: 12.4.0 , < 12.4.9 (semver) Affected: 13.0.0 , < 13.0.7 (semver) Affected: 13.1.0 , < 13.1.4 (semver)

Date Public

2026-07-24 18:38

Credits

czarflix

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-17183",
                "options": [
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                    "Technical Impact": "partial"
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      ],
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          "value": "An authenticated user with permission to create or edit alert rules can bypass datasource query authorization by marking an alert rule query as a server-side expression while referencing a real datasource UID (incorrect authorization). This can expose data accessible through Grafana\u0027s configured datasource credentials to users who lack permission to query that datasource."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
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        {
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              "description": "CWE-863: INCORRECT AUTHORIZATION",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-27T17:22:31.524Z",
        "orgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
        "shortName": "GRAFANA"
      },
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          ],
          "url": "https://grafana.com/security/security-advisories/cve-2026-17183"
        }
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      "source": {
        "discovery": "BUG_BOUNTY"
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        "engine": "cvelib 1.8.0"
      }
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    "assignerOrgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
    "assignerShortName": "GRAFANA",
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    "datePublished": "2026-08-19T17:30:06.798Z",
    "dateReserved": "2026-07-24T18:38:02.221Z",
    "dateUpdated": "2026-08-27T17:22:31.524Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-94440 (GCVE-0-2026-94440)

Vulnerability from cvelistv5 – Published: 2026-10-08 22:53 – Updated: 2026-10-09 16:09

Title

Memory limit bypass when parsing MIME headers in net/textproto, mime/multipart

Summary

Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is less than 400 bytes.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-09 16:09 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

Go CNA under the Google root

CNA scorecard E 42/100 over 76 records in the last 180 days details

References

4 references

URL	Tags
https://go.dev/cl/847307
https://go.dev/issue/81741
https://groups.google.com/g/golang-announce/c/U2f…
https://pkg.go.dev/vuln/GO-2026-6608

Impacted products

2 products

Vendor	Product	Version
Go standard library	net/textproto	Affected: 0 , < 1.26.9 (semver) Affected: 1.27.0-0 , < 1.27.2 (semver)
Go standard library	mime/multipart	Affected: 0 , < 1.26.9 (semver) Affected: 1.27.0-0 , < 1.27.2 (semver)

Credits

Jakub Ciolek (https://ciolek.dev)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "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",
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        },
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              "name": "Reader.ReadContinuedLineBytes"
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              "name": "Reader.readForm"
            },
            {
              "name": "Reader.NextPart"
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            {
              "name": "Reader.NextRawPart"
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            {
              "name": "Reader.ReadForm"
            }
          ],
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

RHSA-2026:89732

CVE-2026-17183 (GCVE-0-2026-17183)

CVE-2026-94440 (GCVE-0-2026-94440)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour