CVE-2026-65838

תיאור (מקור, אנגלית)

Skipper is an HTTP router and reverse proxy for service composition. Prior to 0.27.35, the opaAuthorizeRequestWithBody filter in filters/openpolicyagent/openpolicyagent.go can allow an oversized declared Content-Length request to bypass a deny-on-presence Rego policy because ExtractHttpBodyOptionally leaves OPA with an empty parsed_body while forwarding the complete request body upstream. This incomplete remediation of CVE-2026-50197 affects deployments that authorize request-body content and exceed -open-policy-agent-max-request-body-size, which defaults to 1 MB. Policy logic that does not reject input.attributes.request.http.truncated_body can therefore fail open and permit a forbidden payload to reach the protected service, while small bodies and the previously fixed chunked-body case are evaluated normally. This issue is fixed in version 0.27.35.

מדדים

CVSS 3.1

8.2 (HIGH) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-1/10/2026

CWE

CWE-754

קישורים

• https://github.com/zalando/skipper/commit/2cfceabaa6ff0af65b312dcb9bcbe84691b9‮…
• https://github.com/zalando/skipper/releases/tag/v0.27.35
• https://github.com/zalando/skipper/security/advisories/GHSA-8qqm-fp2q-v734