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CVE-2026-40868

Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to 1.16.4, kyverno’s apiCall servicecall helper implicitly injects Authorization: Bearer ... using the kyverno controller serviceaccount token when a policy does not explicitly set an Authorization header. Because context.apiCall.service.url is policy-controlled, this can send the kyverno serviceaccount token to an attacker-controlled endpoint (confused deputy). Namespaced policies are blocked from servicecall
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:46d487591d0a482b0b900a9ac86f3e749c2bd406e5dc124e09a6253cbec51205
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"kyverno","vendor":"kyverno","versions":[{"status":"affected","version":"< 1.16.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5a460a6f1d1e274001b3d4beb49e656ef9ade10af86696928b432b31f559562e · sha256:9c318f33675fe2dc… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5a460a6f1d1e274001b3d4beb49e656ef9ade10af86696928b432b31f559562e · sha256:9c318f33675fe2dc… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-922","description":"CWE-922: Insecure Storage of Sensitive Information","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5a460a6f1d1e274001b3d4beb49e656ef9ade10af86696928b432b31f559562e · sha256:9c318f33675fe2dc… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-q93q-v844-jrqp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5a460a6f1d1e274001b3d4beb49e656ef9ade10af86696928b432b31f559562e · sha256:9c318f33675fe2dc… · /containers/adp/0/references/0
{"name":"https://github.com/kyverno/kyverno/security/advisories/GHSA-q93q-v844-jrqp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-q93q-v844-jrqp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5a460a6f1d1e274001b3d4beb49e656ef9ade10af86696928b432b31f559562e · sha256:9c318f33675fe2dc… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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