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CVE-2026-6540

Calico's Application Layer Policy (disabled by default), which enforces HTTP rules through Dikastes, fails to perform URL path normalization. As a result, HTTP requests using path-traversal segments, encoded slashes, or repeated slashes are not correctly evaluated by Prefix path rules. Dikastes authorizes the request under the permitted prefix while the downstream workload or a fronting proxy normalizes the path and serves the restricted endpoint. An attacker with network access and no special R
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c3965a7700872a4eb269c53d769558a177cf5a74585272e7dc2b0f175244055f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"defaultStatus":"unaffected","product":"Calico Enterprise","vendor":"Tigera","versions":[{"lessThan":"3.21.7","status":"affected","version":"0","versionType":"semver"},{"lessThan":"3.22.4","status":"affected","version":"3.22.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Calico Cloud","vendor":"Tigera","versions":[{"lessThan":"22.4.0","status":"affected","version":"0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/affected/2

{"defaultStatus":"unaffected","product":"Calico","vendor":"Tigera","versions":[{"lessThan":"3.31.6","status":"affected","version":"0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/affected/0
cwe · 2 assertions

{"cweId":"CWE-23","description":"CWE-23 Relative Path Traversal","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-22","description":"CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

3 source assertions
{"defaultStatus":"unaffected","product":"Calico Enterprise","vendor":"Tigera","versions":[{"lessThan":"3.21.7","status":"affected","version":"0","versionType":"semver"},{"lessThan":"3.22.4","status":"affected","version":"3.22.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Calico Cloud","vendor":"Tigera","versions":[{"lessThan":"22.4.0","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/affected/2
{"defaultStatus":"unaffected","product":"Calico","vendor":"Tigera","versions":[{"lessThan":"3.31.6","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.9,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:L","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"N…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-23","description":"CWE-23 Relative Path Traversal","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-22","description":"CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["patch"],"url":"https://github.com/projectcalico/calico/pull/12531"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/references/0
{"tags":["patch"],"url":"https://github.com/projectcalico/calico/pull/12532"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/projectcalico/calico/pull/12533"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/references/2
{"tags":["vendor-advisory"],"url":"https://www.tigera.io/security-bulletins/tta-2026-005/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c595215b3f9196dd90364d6be1810d828bda2b103db7aef6240f2d2a9eef2724 · sha256:f8c9e2b90db75d21… · /containers/cna/references/3

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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