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CVE Record

CVE-2022-35957: Authentication Bypass in Grafana via auth proxy allowing escalation from admin to server admin

Grafana is an open-source platform for monitoring and observability. Versions prior to 9.1.6 and 8.5.13 are vulnerable to an escalation from admin to server admin when auth proxy is used, allowing an admin to take over the server admin account and gain full control of the grafana instance. All installations should be upgraded as soon as possible. As a workaround deactivate auth proxy following the instructions at: https://grafana.com/docs/grafana/latest/setup-grafana/configure-security/configure-authentication/auth-proxy/

MediumCVSS 6.6Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Affected Grafana versions can let an existing Grafana admin become server admin when auth proxy is enabled. Server admin control can affect the whole Grafana instance, so this is a serious configuration-dependent escalation, not a broad unauthenticated takeover.

Executive priority

Prioritize remediation for production or externally reachable Grafana instances using auth proxy. Business urgency is moderate overall, higher where administrators are numerous or Grafana controls sensitive monitoring data.

Technical view

CVE-2022-35957 is a CWE-290 authentication-bypass issue in Grafana before 9.1.6 and 8.5.13. With auth proxy enabled, a privileged admin can escalate to server admin and take full control of the Grafana instance. CVSS is 6.6 with high confidentiality, integrity, and availability impact.

Likely exposure

Exposure is limited to Grafana deployments running vulnerable versions with auth proxy enabled and at least one Grafana admin account present.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation evidence. The vulnerability requires high privileges and high attack complexity, but the impact is full instance control after escalation.

Researcher notes

The key exposure condition is auth proxy use. Sources describe escalation from admin to server admin, not unauthenticated access. Avoid assuming exploit availability, affected downstream products, or compensating controls beyond the documented workaround.

Mitigation direction

  • Upgrade Grafana to 9.1.6, 8.5.13, or a later fixed release.
  • If immediate upgrade is not possible, deactivate auth proxy per Grafana guidance.
  • Inventory packaged Grafana builds from operating system or appliance vendors.
  • Review vendor advisories for downstream products that bundle Grafana.

Validation and detection

  • Check every Grafana instance version against the affected version ranges.
  • Confirm whether auth proxy is enabled in Grafana configuration.
  • Identify users with Grafana admin privileges on affected instances.
  • Review recent server-admin changes and admin account activity.
Prepared
Confidence
high
Sources
6

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-290: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2022-35957 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.6 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.6CVSS 3.1MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H0.75.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.6Medium
CVSS 3.1 vector shape for CVE-2022-35957Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
grafanagrafana> 9.0.0, < 9.1.6, < 8.5.13Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-290 · source CWE mapping

Authentication Bypass by Spoofing

Authentication Bypass by Spoofing represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.