Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1780478536 advisory.

  - Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL     datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack     can take upwards of half an hour to crash the server. (CVE-2026-33378)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1780478536 advisory.

  - Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL     datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack     can take upwards of half an hour to crash the server. (CVE-2026-33378)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The AlmaLinux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1781093705 advisory.

  - When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses. Addresses     specifying a mask explicitly are not affected; to mitigate easily, add the desired mask (usually /128) to     the addresses. Only auth proxy is affected; Okta, SAML, LDAP, etc are unaffected here. (CVE-2026-33376)

  - An Editor can overwrite a dashboard not owned by them to acquire admin on that specific dashboard. The     user must have write access to the dashboard to escalate privilege. (CVE-2026-33377)

  - Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL     datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack     can take upwards of half an hour to crash the server. (CVE-2026-33378)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3718-1 advisory.

    grafana updated from version 11.6.14+security04 to version 12.4.5:

    Security fixes:

    - CVE-2026-39882: Prevent memory exhaustion DoS in OpenTelemetry OTLP HTTP exporters (bsc#1274217)
    - CVE-2026-33382: Limit the size of the request body before processing it at several Grafana API endpoints     (bsc#1271331)
    - CVE-2025-12141: Fixed information leakage in Grafana Alerting (bsc#1262187)
    - CVE-2026-41607: Fix potential information disclosure in Apache Thrift (bsc#1263272)

    Breaking chahnges introduced in version 12.0.0:

    - BREAKING: Removed AngularJS and all deprecated UI Extensions  APIs.
    - BREAKING: Enforced stricter version compatibility checks in plugin CLI install commands.
    - BREAKING: Enabled the failWrongDSUID feature flag by default, which rejects data sources with incorrect     UIDs.


Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20940-1 advisory.

    Changes in grafana:

    - CVE-2026-39821: Fix validation bypass and privilege escalation by       updating golang.org/x/net to version 0.55.0 (bsc#1266600)

    - Update to version 11.6.14+security-04:
      Security:
      * CVE-2026-28374: Fix insecure direct object reference in         Annotations API (bsc#1265290)
      * CVE-2026-28376: Fix unbounded memory allocation in Grafana Live         push endpoint (bsc#1265289)
      * CVE-2026-28383: Fix unbounded memory allocation in Grafana         plugin resources (bsc#1265286)
      * CVE-2026-28380: Fix broken access control in Snapshot API         (bsc#1265287)
      * CVE-2026-33376: Fix Auth Proxy IPv6 whitelist bypass         (bsc#1265285)
      * CVE-2026-28379: Fix viewer-triggered race condition in         Grafana Live (bsc#1265288)
      * CVE-2026-33377: Fix dashboard Editor Privilege Escalation         (bsc#1265284)
      * CVE-2026-33378: Fix OOM exception in Grafana Data Source Plugin         (bsc#1265283)
      * CVE-2026-33381: Prevent users from generating Service Account         tokens after permissions removal (bsc#1265281)
      * CVE-2026-33380: Fix vulnerability in SQL Expressions allowing         an authenticated attacker to read arbitrary files from the         Grafana servers filesystem (bsc#1265282)

    - CVE-2026-34986: Fix panic in JWE decryption (bsc#1262950)
    - CVE-2026-41602: Fix Integer Overflow or Wraparound vulnerability       in Apache Thrift (bsc#1263501)

    - CVE-2026-26958: Bump filippo.io/edwards25519 to version 1.1.1       (bsc#1258595)
    - CVE-2026-21725: Fix missing UID when deleting datasource by name       (bsc#1258873)

    - Update to version 11.6.14+security-01:
      Security:
      * CVE-2026-33375: Fix denial of Service via out-of-memory         exhaustion in MSSQL data source plugin (bsc#1260881)

    - Update to version 11.6.14:
      Security:
      * CVE-2026-27876: Fix remote arbitrary code execution via chained         SQL Expressions (bsc#1261025)
      * CVE-2026-27877: Fix information disclosure of data-source         passwords via public dashboards (bsc#1261026)
      * CVE-2026-28375: Fix denial of service via testdata data-source         (bsc#1261029)
      * CVE-2026-27879: Fix denial of service via resample query         (bsc#1261027)
      * CVE-2026-33186: Fix authorization bypass due to improper         validation of the HTTP/2 :path pseudo-header (bsc#1260263)
      * CVE-2026-21724: Fix authorization bypass allows modification of         protected webhook URLs (bsc#1260878)

    - Update to version 11.6.13:
      Enhancement:
      * Wire the public dashboard service to the HTTP server

    - Update to version 11.6.12:
      Enhancement:
      * Update authentication redirect logic       Bug fix:
      * Fix single panel render with variable references

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Grafana Labs installed on the remote host is affected by multiple vulnerabilities, including:
  - A broken access control flaw in the Snapshot API allows any Editor to delete dashboard snapshots, even     those they have no read or write access to. (CVE-2026-28380)

  - When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses, allowing the     intended whitelist to be bypassed. (CVE-2026-33376)

  - Dashboard import overwrites the dashboard ACL, allowing an Editor to overwrite a dashboard not owned by     them and acquire admin on that specific dashboard. (CVE-2026-33377)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL     datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack     can take upwards of half an hour to crash the server. (CVE-2026-33378)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
362372	Rocky Linux 9.6 [TuxCare] Security Update: grafana / grafana-selinux (ALMALINUX9.6:CLSA-2026:1780478536)	Nessus	Rocky Linux Local Security Checks	Local	medium
362283	AlmaLinux 9.6 [TuxCare] Security Update: grafana / grafana-selinux (ALMALINUX9.6:CLSA-2026:1780478536)	Nessus	Alma Linux Local Security Checks	Local	medium
352277	AlmaLinux 9.2 [TuxCare] Security Update: grafana Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1781093705)	Nessus	Alma Linux Local Security Checks	Local	high
339730	SUSE SLES15 Security Update : grafana (SUSE-SU-2026:3718-1)	Nessus	SuSE Local Security Checks	Local	medium
321072	openSUSE 16 Security Update : grafana (openSUSE-SU-2026:20940-1)	Nessus	SuSE Local Security Checks	Local	medium
316482	Grafana Labs < 11.6.14+security-04 / 12.2.0 < 12.2.8+security-04 / 12.3.0 < 12.3.6+security-04 / 12.4.0 < 12.4.3+security-02 / 13.0.0 < 13.0.1+security-01 Multiple Vulnerabilities	Nessus	Web Servers	Remote	high
316447	Linux Distros Unpatched Vulnerability : CVE-2026-33378	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-33378

medium

Tenable Plugins

medium

medium

high

medium

medium

high

medium