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CVE.org (no NVD analysis yet)· CNA GRAFANA

CVE-2026-79656: OAuth and OIDC tokens written unredacted to server logs by the Generic OAuth, Google and GitLab connectors

Noroxi assessment

Priority: Monitor (action score 24/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.16% (FIRST EPSS).
  • Someone with local access to the system can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Grafana Grafana Enterprise 12.4.11, 13.0.9, 13.1.6; Grafana Grafana OSS 12.4.11, 13.0.9, 13.1.6.

Low priority for now. Upgrade to Grafana Grafana Enterprise 12.4.11, 13.0.9, 13.1.6; Grafana Grafana OSS 12.4.11, 13.0.9, 13.1.6 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A user with read access to Grafana's server logs, or to a log store they are shipped to, can recover the OAuth and OIDC access, refresh and ID tokens of users who sign in through the Generic OAuth, Google or GitLab providers. Grafana writes these tokens to its logs unredacted when an access or ID token is not a valid JWT, when the ID token is missing (at debug level) or is not a string (exposure of sensitive information in log files). The exposure is bounded by the scopes granted to the configured OAuth client.

MediumCVSS 6.0 · v3.1—No exploit Fix available
Published
Oct 28, 2026
Updated
Nov 5, 2026
EPSS
0.1% · 5th percentile

Report tools

JSON

Action score

24

Monitor

Low priority for now.

CVSS
24 / 40 · 6.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GRAFANA
6.0
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-79656

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GRAFANA). Independent of NVD's CPE analysis and usually ahead of it.

  • Grafana Grafana Enterprise

    • up to and including 12.3.11affected · semver
    • 12.4.0 and later · before 12.4.11affected · semver
    • 13.0.0 and later · before 13.0.9affected · semver
    • 13.1.0 and later · before 13.1.6affected · semver
    • 13.2.0 and later · before 13.2.2affected · semver

  • Grafana Grafana OSS

    • up to and including 12.3.11affected · semver
    • 12.4.0 and later · before 12.4.11affected · semver
    • 13.0.0 and later · before 13.0.9affected · semver
    • 13.1.0 and later · before 13.1.6affected · semver
    • 13.2.0 and later · before 13.2.2affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.24grafanabefore 12.4.14-r012.4.14-r0
openSUSE:Tumbleweedgrafanabefore 12.4.11-1.112.4.11-1.1

Same product

grafana: all records

Other highest-scoring records for the same primary product.

Published before and after this one in the same product

  • ← EarlierCVE-2026-19197Aug 26, 2026 · Broken access control in dashboard snapshots
    25Monitor
  • ← EarlierCVE-2026-13720Sep 30, 2026 · Editor can forge file-provisioning provenance on dashboards via the dashboard API
    21Monitor
  • ← EarlierCVE-2026-88858Oct 28, 2026 · Server-side expression parser denial of service
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Grafana Grafana Enterprise12.4.11Vendor (CNA)
Grafana Grafana Enterprise13.0.9Vendor (CNA)
Grafana Grafana Enterprise13.1.6Vendor (CNA)
Grafana Grafana Enterprise13.2.2Vendor (CNA)
Grafana Grafana OSS12.4.11Vendor (CNA)
Grafana Grafana OSS13.0.9Vendor (CNA)
Grafana Grafana OSS13.1.6Vendor (CNA)
Grafana Grafana OSS13.2.2Vendor (CNA)
alpine:grafana12.4.14-r0 · Alpine:v3.24Package registry (OSV)
opensuse:grafana12.4.11-1.1 · openSUSE:TumbleweedPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 7, 2026+10 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Local
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-532 · Insertion of Sensitive Information into Log File

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. SSVC exploitation— → none
  2. Exploit maturity— → none
  3. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records