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CVE-2026-65604

Skipper contains an incomplete fix for CVE-2026-50197 in which oversized request bodies bypass Open Policy Agent (OPA) deny-on-presence Rego policies. When a request body exceeds the configured maxBodyBytes limit, Skipper forwards the full payload to the upstream service while OPA evaluates against an empty parsed_body, so policies that deny requests based on body content are not enforced and forbidden actions proceed. No fixed version is available; v0.27.26 adds documentation guidance only.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:96e5deee48d224e802ed3775f6a3e97e5ba9c62622817a42cce703bf327d5517
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0923f52ec0459fba4a44e87e2b6975c826e0d726ccfca4f36f5a630b391611e6 · sha256:c8d27dfa2b929ea1… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.8,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0923f52ec0459fba4a44e87e2b6975c826e0d726ccfca4f36f5a630b391611e6 · sha256:c8d27dfa2b929ea1… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"affected","product":"skipper","vendor":"zalando"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0923f52ec0459fba4a44e87e2b6975c826e0d726ccfca4f36f5a630b391611e6 · sha256:c8d27dfa2b929ea1… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0923f52ec0459fba4a44e87e2b6975c826e0d726ccfca4f36f5a630b391611e6 · sha256:c8d27dfa2b929ea1… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.8,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0923f52ec0459fba4a44e87e2b6975c826e0d726ccfca4f36f5a630b391611e6 · sha256:c8d27dfa2b929ea1… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-20","description":"Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0923f52ec0459fba4a44e87e2b6975c826e0d726ccfca4f36f5a630b391611e6 · sha256:c8d27dfa2b929ea1… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["exploit"],"url":"https://github.com/zalando/skipper/security/advisories/GHSA-8qqm-fp2q-v734"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0923f52ec0459fba4a44e87e2b6975c826e0d726ccfca4f36f5a630b391611e6 · sha256:c8d27dfa2b929ea1… · /containers/adp/0/references/0
{"name":"GitHub Security Advisory (GHSA-8qqm-fp2q-v734)","tags":["vendor-advisory"],"url":"https://github.com/zalando/skipper/security/advisories/GHSA-8qqm-fp2q-v734"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0923f52ec0459fba4a44e87e2b6975c826e0d726ccfca4f36f5a630b391611e6 · sha256:c8d27dfa2b929ea1… · /containers/cna/references/0
{"name":"VulnCheck Advisory: Skipper Incomplete Fix for CVE-2026-50197 Policy Bypass","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/skipper-incomplete-fix-for-cve-2026-50197-policy-bypass"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0923f52ec0459fba4a44e87e2b6975c826e0d726ccfca4f36f5a630b391611e6 · sha256:c8d27dfa2b929ea1… · /containers/cna/references/1

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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