CASCACascade Atlas

Evidence dossier

CVE-2021-43798

Grafana path traversal

Exploited in the wild (CISA KEV since Oct 9, 2025). GitHub_M reports CVSS 3.1 7.5. EPSS estimates 88.5% exploit likelihood as of Aug 27, 2026.

80.2–81.7Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

Grafana is an open-source platform for monitoring and observability. Grafana versions 8.0.0-beta1 through 8.3.0 (except for patched versions) iss vulnerable to directory traversal, allowing access to local files. The vulnerable URL path is: `<grafana_host_url>/public/plugins//`, where is the plugin ID for any installed plugin. At no time has Grafana Cloud been vulnerable. Users are advised to upgrade to patched versions 8.0.7, 8.1.8, 8.2.7, or 8.3.1. The GitHub Security Advisory contains more information about vulnerable URL paths, mitigation, and the disclosure timeline.

State
PUBLISHED
Published
Dec 7, 2021
Updated
Oct 21, 2025
Evidence coverage
98%

Evidence chronology

What was known when

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  1. Source dateSource date omittedFirst observed by CASCA
    CISA-ADP

    Record text: CISA ADP Vulnrichment

    Inspect raw assertion
    Field
    container
    Value
    CISA ADP Vulnrichment
    Original evidence ↗
  2. Source dateSource date omittedFirst observed by CASCA
    CVE Program

    Record text: CVE Program Container

    Inspect raw assertion
    Field
    container
    Value
    CVE Program Container
    Original evidence ↗
  3. Source dateSource date omittedFirst observed by CASCA
    GitHub_M

    Record text: Grafana path traversal

    Inspect raw assertion
    Field
    container
    Value
    Grafana path traversal
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Grafana Path Traversal Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Grafana Path Traversal Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 88.5% probability · 99.76th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.885030000000; percentile 0.997600000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Oct 9, 2025 · first observed Jul 19, 2026

Exploit likelihood88.50%

FIRST EPSS · score date Aug 27, 2026 · 99.8th percentile · first observed Aug 27, 2026

SeverityCVSS 7.5

GitHub_M · CVSS 3.1 · first observed Jul 19, 2026 · same-version scores align in this snapshot

Evidence detail

Source limits and decisions

Why each evidence state has this value

casca-unknown-reasons-v1
Exploitation statusEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Aug 27, 2026
Resolution
None
Affected productsSource-reported scope

The cited source assertion is retained while canonical product linkage remains open.

Revision
casca-factor-d-obligations-v1
Cutoff
Aug 27, 2026
Resolution
Resolve identity

Source comparison

Who said what

CISA-ADPIndependent enrichment
Record text

CISA ADP Vulnrichment

Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CVE ProgramDerivative copy
Record text

CVE Program Container

Inspect raw assertion
Field
container
Value
CVE Program Container
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
GitHub_MOriginal assertion
Record text

Grafana path traversal

Inspect raw assertion
Field
container
Value
Grafana path traversal
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

Grafana Path Traversal Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Grafana Path Traversal Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

88.5% probability · 99.76th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.885030000000; percentile 0.997600000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
7Underlying assertions
1Canonical products
7Target assertions
0Constraint assertions

Grouped from 1 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.

Identity source boundaries
  • Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z27d65b0f-b718-4b4f-bb79-c47c68d09dfa
  • Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z955dae73-7302-438b-aee1-058d7cc5d48e

2 scope groups

GitHub_M · source assertedgrafanagrafanaDirect source scope
Affected: >= 8.0.0, < 8.0.7Affected: >= 8.1.0, < 8.1.8Affected: >= 8.2.0, < 8.2.7Affected: = 8.3.0
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": ">= 8.0.0, < 8.0.7"}, {"status": "affected", "version": ">= 8.1.0, < 8.1.8"}, {"status": "affected", "version": ">= 8.2.0, < 8.2.7"}, {"status": "affected", "version": "= 8.3.0"}]
NVD CPE · APPLICATIONgrafanagrafanaVulnerable target · 7 assertions
Any version (unconstrained) (>= 8.0.1, < 8.0.7); Any version (unconstrained) (>= 8.1.0, < 8.1.8); Any version (unconstrained) (>= 8.2.0, < 8.2.7); Version 8.0.0; Version 8.3.0Canonical identity product-c7629ab39b43276a3c47f468017bfb412d824c0c709bb48b036b75f1973a5252Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:grafana:grafana:8.3.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 6
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    db249517-1bc4-4d6f-8c8f-d1744cff4e4c
  2. cpe:2.3:a:grafana:grafana:8.0.0:beta2:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 4
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    ca972db1-60a8-470f-86f5-a7afb1c98666
  3. cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 2
    Logic
    OR
    Version bounds
    from including 8.2.0; through excluding 8.2.7
    Match ID
    860c7085-a83f-4a15-8587-6a4a598d9141
  4. cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 1
    Logic
    OR
    Version bounds
    from including 8.1.0; through excluding 8.1.8
    Match ID
    53d52b8c-3355-4329-b222-4c3878a8f074
  5. cpe:2.3:a:grafana:grafana:8.0.0:beta1:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 3
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    0d8f31cd-1c2b-47f0-9629-d29ad700f689
  6. cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 8.0.1; through excluding 8.0.7
    Match ID
    449504c1-1b9b-4d4e-940b-7107d6235af3
  7. cpe:2.3:a:grafana:grafana:8.0.0:beta3:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 5
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    4ff3ab6b-aae8-41df-bb0a-3fe119e826d1

Affected-product evidence

Accepted scope and product mapping

1 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-6eb9f0746b753136e8486247c61b6724495fb879a99b66ff9937f4a6bbbccf99 · product-c7629ab39b43276a3c47f468017bfb412d824c0c709bb48b036b75f1973a5252

Source class
Nvd cpe vulnerable target
Assertions
7
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
27a87195-353e-48d4-8ccd-b0d8bcbadf6e74ad2d7d-0956-464d-bddd-b29e33fe8d5da2ebce97-de86-495d-8729-b5d29e527dd1b1cf5485-13e0-4d75-b66c-59a66f858a5fc57a9706-8457-413b-9a0a-03a8027d54bad1428219-e8cc-4c26-a5e2-57b43f0c74bfd580e8a1-f8dc-4f24-aacf-32962a65ee86
Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class
Direct cve affected
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
9d840c7c-8277-41a8-80b6-c8c418e903cd

Assessments

CVSS by origin

5.0
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5
security-advisories@github.comCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5
GitHub_MCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Direct CVE/CNA normalized decisions

7.5Priority eligible

GitHub_M

CVSS 3.1 · Primary · Original assertion · rank 1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Validation
Valid match
Recomputed
7.5
Decision reason
Evidence supported
Policy
casca-direct-cvss-eligibility-v1

Assessments are retained side by side under closed precedence. Cascade never averages CVSS.

Evidence boundaries

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
  • NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
  • OSV aggregation and OSV-converted NVD material are not independent corroboration.
  • Red Hat facts are vendor assertions for the exact supplied products.
  • Nonmembership and not-yet-observed states are not proof of safety.