Published severityHigh→Operational priority:High, unchanged from published severity.unchanged
Evidence used
No CISA KEV confirmation is currently recorded.
EPSS is 0.31% for the current model date.
Compensating controls
Validate the affected product branch and deploy the verified fixed release.
Restrict the affected network interface to trusted sources where business-safe.
Monitor vendor guidance and exploitation sources for a material change.
Verification
Confirm that the asset runs Grafana Grafana Enterprise and falls inside the recorded affected range.
Verify the installed build against the product-specific fixed version after deployment.
Validate exposure, authentication requirements and compensating controls in the actual environment.
Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Direct vendor intelligence
Authoritative vendor CSAF and VEX advisories
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
The vendor explicitly identifies these products as affected by this CVE.
multicluster-globalhub/multicluster-globalhub-grafana-rhel9 as a component of Multicluster Global Hub
rhacm2/acm-grafana-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2
rhceph/rhceph-5-dashboard-rhel8 as a component of Red Hat Ceph Storage 5
rhceph/rhceph-6-dashboard-rhel9 as a component of Red Hat Ceph Storage 6
rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 7
rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 8
rhceph/grafana-rhel10 as a component of Red Hat Ceph Storage 9
Summary
On instances using Auth Proxy header authentication ([auth.proxy]) with identity caching enabled (sync_ttl > 0), two distinct user identities could produce the same cache key. An authenticated low-privileged user able to influence their own forwarded identity attributes could be served a higher-privileged user's cached session and act as that user for the duration of the cache TTL. Default configurations are not affected.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
Optional official sources
National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.
Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.
Official European source
ENISA European Vulnerability Database
Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.
1 current
ENISA EUVD identifier
EUVD-2026-70198
No EUVD known-exploited evidence
Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).
EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
7.1 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days
High technical severity; prioritise exposed affected systems while verifying vendor guidance.
Patch available
01
What, why and how
Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).
What
Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).
Why
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
How
An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may bypass an access boundary or take over an account.
What
Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).
Why
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
How
An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may bypass an access boundary or take over an account.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation ?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No confirmed evidence
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material ?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.None recorded
No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
Likely attack path
a network path → Authentication Bypass by Spoofing → bypass an access boundary or take over an account
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness ?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-290: Authentication Bypass by Spoofing. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
CVSS vector ?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.ALowAvailability impact: A successful attack can cause a limited loss.
Post-exploitation / living off the land
Stolen credentials, tokens and legitimate administration functions may provide continued access without deploying a large custom toolset.
NetworkCWE-290
A
Official authority intelligence
Only matched European and national findings are included. Language selectors and unavailable sources are omitted.
ENISA EUVD · EUVD-2026-70198Official EUVD mapping
Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).
Official EUVD record ↗BSI · German · WID-SEC-2026-3190Grafana Enterprise: Mehrere Schwachstellen ermöglichen Erlangen von Benutzer- oder Administratorrechten
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Grafana Enterprise ausnutzen, um Benutzer- oder Administratorrechte zu erlangen.
Official advisory ↗Cyber Security Agency of Singapore · English · CSA-SB-20260909Security Bulletin 9 Sep 2026
The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 9 Sep 2026, published on 9 September 2026. Open the linked bulletin for the product, severity and reference information published in that issue.
Official advisory ↗CSIRT Italia · Italian · risolta-vulnerabilita-in-grafana-1Risolta vulnerabilità in Grafana
Rilasciati aggiornamenti di sicurezza per risolvere una vulnerabilità con gravità “alta” presente in Grafana Enterprise, nota applicazione web per la visualizzazione e l’analisi interattiva di dati. Tale vulnerabilità, qualora sfruttata, potrebbe consentire ad un utente malintenzionato, in presenza di specifiche condizioni, di eludere i meccanismi di autenticazione sui sistemi interessati.
Official advisory ↗JVN iPedia · Japanese · JVNDB-2026-033720Grafana LabsのGrafanaにおける複数の脆弱性
Operational remediation based on structured source evidence.
Status ?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04
Evidence and provenance
Published 2 Sept 2026 · Last source change 3 Sept 2026, 08:07 UTC · CWE-290 · Authentication Bypass by Spoofing
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source ?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.FIRST · tracked since 2026-09-03
European sourceENISA EUVD · EUVD-2026-70198
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD enriched
Core structured fields are present and their contributing authorities are shown above.
Affected versionsThe structured affected or fixed version information changed.
Before
multicluster-globalhub/multicluster-globalhub-grafana-rhel9 as a component of Multicluster Global Hub; rhacm2/acm-grafana-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhceph/rhceph-6-dashboard-rhel9 as a component of Red Hat Ceph Storage 6; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 7; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 8; rhceph/grafana-rhel10 as a component of Red Hat Ceph Storage 9 · Fixed: grafana12.4-0:12.4.10-0.2.hum1@aarch64 as a component of Red Hat Hardened Images; grafana12.4-0:12.4.10-0.2.hum1@src as a component of Red Hat Hardened Images; grafana12.4-0:12.4.10-0.2.hum1@x86_64 as a component of Red Hat Hardened Images; grafana13.1-0:13.1.6-0.2.hum1@aarch64 as a component of Red Hat Hardened Images; grafana13.1-0:13.1.6-0.2.hum1@src as a component of Red Hat Hardened Images; grafana13.1-0:13.1.6-0.2.hum1@x86_64 as a component of Red Hat Hardened Images
After
multicluster-globalhub/multicluster-globalhub-grafana-rhel9 as a component of Multicluster Global Hub; rhacm2/acm-grafana-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhceph/rhceph-5-dashboard-rhel8 as a component of Red Hat Ceph Storage 5; rhceph/rhceph-6-dashboard-rhel9 as a component of Red Hat Ceph Storage 6; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 7; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 8; rhceph/grafana-rhel10 as a component of Red Hat Ceph Storage 9 · Fixed: grafana12.4-0:12.4.10-0.2.hum1@aarch64 as a component of Red Hat Hardened Images; grafana12.4-0:12.4.10-0.2.hum1@src as a component of Red Hat Hardened Images; grafana12.4-0:12.4.10-0.2.hum1@x86_64 as a component of Red Hat Hardened Images; grafana13.1-0:13.1.6-0.2.hum1@aarch64 as a component of Red Hat Hardened Images; grafana13.1-0:13.1.6-0.2.hum1@src as a component of Red Hat Hardened Images; grafana13.1-0:13.1.6-0.2.hum1@x86_64 as a component of Red Hat Hardened Images
Affected versionsThe structured affected or fixed version information changed.
Before
multicluster-globalhub/multicluster-globalhub-grafana-rhel9 as a component of Multicluster Global Hub; rhacm2/acm-grafana-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhceph/rhceph-6-dashboard-rhel9 as a component of Red Hat Ceph Storage 6; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 7; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 8; rhceph/grafana-rhel10 as a component of Red Hat Ceph Storage 9; grafana13.1.src as a component of Red Hat Hardened Images · Fixed: grafana12-4-main@aarch64 as a component of Red Hat Hardened Images; grafana12-4-main@src as a component of Red Hat Hardened Images; grafana12-4-main@x86_64 as a component of Red Hat Hardened Images
After
multicluster-globalhub/multicluster-globalhub-grafana-rhel9 as a component of Multicluster Global Hub; rhacm2/acm-grafana-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhceph/rhceph-6-dashboard-rhel9 as a component of Red Hat Ceph Storage 6; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 7; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 8; rhceph/grafana-rhel10 as a component of Red Hat Ceph Storage 9 · Fixed: grafana12.4-0:12.4.10-0.2.hum1@aarch64 as a component of Red Hat Hardened Images; grafana12.4-0:12.4.10-0.2.hum1@src as a component of Red Hat Hardened Images; grafana12.4-0:12.4.10-0.2.hum1@x86_64 as a component of Red Hat Hardened Images; grafana13.1-0:13.1.6-0.2.hum1@aarch64 as a component of Red Hat Hardened Images; grafana13.1-0:13.1.6-0.2.hum1@src as a component of Red Hat Hardened Images; grafana13.1-0:13.1.6-0.2.hum1@x86_64 as a component of Red Hat Hardened Images
Affected versionsThe structured affected or fixed version information changed.
Before
multicluster-globalhub/multicluster-globalhub-grafana-rhel9 as a component of Multicluster Global Hub; rhacm2/acm-grafana-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhceph/rhceph-6-dashboard-rhel9 as a component of Red Hat Ceph Storage 6; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 7; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 8; rhceph/grafana-rhel10 as a component of Red Hat Ceph Storage 9; grafana12.4.src as a component of Red Hat Hardened Images; grafana13.1.src as a component of Red Hat Hardened Images
After
multicluster-globalhub/multicluster-globalhub-grafana-rhel9 as a component of Multicluster Global Hub; rhacm2/acm-grafana-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhceph/rhceph-6-dashboard-rhel9 as a component of Red Hat Ceph Storage 6; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 7; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 8; rhceph/grafana-rhel10 as a component of Red Hat Ceph Storage 9; grafana13.1.src as a component of Red Hat Hardened Images · Fixed: grafana12-4-main@aarch64 as a component of Red Hat Hardened Images; grafana12-4-main@src as a component of Red Hat Hardened Images; grafana12-4-main@x86_64 as a component of Red Hat Hardened Images
Affected versionsThe structured affected or fixed version information changed.
Before
multicluster-globalhub/multicluster-globalhub-grafana-rhel9 as a component of Multicluster Global Hub; rhacm2/acm-grafana-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhceph/rhceph-6-dashboard-rhel9 as a component of Red Hat Ceph Storage 6; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 7; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 8; rhceph/grafana-rhel10 as a component of Red Hat Ceph Storage 9; grafana as a component of Red Hat Enterprise Linux 10; grafana-selinux as a component of Red Hat Enterprise Linux 10; grafana.src as a component of Red Hat Enterprise Linux 10; grafana12.4.src as a component of Red Hat Hardened Images; grafana13.1.src as a component of Red Hat Hardened Images
After
multicluster-globalhub/multicluster-globalhub-grafana-rhel9 as a component of Multicluster Global Hub; rhacm2/acm-grafana-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhceph/rhceph-6-dashboard-rhel9 as a component of Red Hat Ceph Storage 6; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 7; rhceph/grafana-rhel9 as a component of Red Hat Ceph Storage 8; rhceph/grafana-rhel10 as a component of Red Hat Ceph Storage 9; grafana12.4.src as a component of Red Hat Hardened Images; grafana13.1.src as a component of Red Hat Hardened Images
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.