Skipper is an HTTP router and reverse proxy for service composition. Prior to 0.26.10, zalando/skipper's OpenPolicyAgent integration silently bypasses request-body inspection on HTTP/1.1 Transfer-Encoding: chunked and HTTP/2 requests that omit the content-length pseudo-header, because the opaAuthorizeRequestWithBody filter and OpenPolicyAgentInstance.ExtractHttpBodyOptionally in filters/openpolicyagent/openpolicyagent.go produce an empty raw_body and input.parsed_body while the upstream service receives the full attacker-controlled body. This issue is fixed in version 0.26.10.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-444"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50197.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "0.26.10"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "3152f3b0bb52ca89c3564be42434db0a2a1cea23"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v0.26.10",
"range": [
{
"fixed": "3152f3b0bb52ca89c3564be42434db0a2a1cea23"
}
],
"source": "REFERENCES_TAG"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "0.26.10"
}
],
"source": "DESCRIPTION"
}
]
}