SCA: security update for github.com/zalando/skipper (GHSA-659f-rgp5-w4wf)

high Tenable Self-Hosted Container Security Plugin ID 444541

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- 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.
(CVE-2026-50197)

Solution

Update the github.com/zalando/skipper library and its related packages to version 0.26.10 or later.

Plugin Details

Severity: High

ID: 444541

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 7/9/2026

Updated: 7/20/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.8

Percentile: 57.79

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-50197

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.8

Threat Score: 4.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/8/2026

Vulnerability Publication Date: 7/8/2026

Reference Information

CVE: CVE-2026-50197

cwe: CWE-444

Detections

Analytics