# github.com/zalando/skipper (Go) vulnerabilities

9 known vulnerabilities (1 critical, 5 high, 2 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: v0.28.71 (Nov 6, 2026): no advisory affects it
- Newest unaffected release: v0.28.71 (Nov 6, 2026), the latest release
- Releases: 500+ since v0.22.29 (May 9, 2025)
- Registry: https://pkg.go.dev/github.com/zalando/skipper
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-86043: v0.22.29 to v0.27.36 (v0.27.37 is outside it)
- CVE-2026-54247: v0.22.29 to v0.26.21 (v0.26.22 is outside it)
- CVE-2026-54246: v0.22.29 to v0.27.12 (v0.27.13 is outside it)
- CVE-2026-65838: v0.22.29 to v0.27.25 (v0.27.26 is outside it)
- CVE-2026-50197: v0.22.29 to v0.26.9 (v0.26.10 is outside it)
- CVE-2026-24470: v0.22.29 to v0.23.1 (v0.24.0 is outside it)
- CVE-2026-23742: v0.22.29 to v0.22.223 (v0.23.0 is outside it)
- CVE-2022-38580: no published release is affected
- CVE-2022-34296: no published release is affected

Older releases aren't stored, so the earliest spans may start sooner.

## Advisories (9)

### [CVE-2026-86043](https://cve.now/CVE-2026-86043): Skipper: OPA body-authz bypass: truncated\_body mitigation fails open on chunked/HTTP-2 (incomplete fix CVE-2026-50197)

- Severity: High 7.5
- Published: Sep 16, 2026
- Affected: fixed in 0.27.37.
- Fixed in v0.27.37 (released Jul 21, 2026, 57 days before disclosure).
- The latest release, v0.28.71, is not affected.

### [CVE-2026-54247](https://cve.now/CVE-2026-54247): Skipper: Unbounded Request Body Read in Admission Webhook Causes Memory Exhaustion DoS

- Severity: Medium 4.3
- Published: Sep 14, 2026
- Affected: fixed in 0.26.22.
- Fixed in v0.26.22 (released Jun 5, 2026, 101 days before disclosure).
- The latest release, v0.28.71, is not affected.

### [CVE-2026-54246](https://cve.now/CVE-2026-54246): Skipper routesrv-no-auth: All routesrv API Endpoints Lack Authentication

- Severity: Medium 5.7
- Published: Sep 14, 2026
- Affected: fixed in 0.27.13.
- Fixed in v0.27.13 (released Jun 23, 2026, 83 days before disclosure).
- The latest release, v0.28.71, is not affected.

### [CVE-2026-65838](https://cve.now/CVE-2026-65838): Skipper: an oversized declared-\`Content-Length\` body still hands OPA an empty \`parsed\_body\`, so deny-on-presence Rego policies fail OPEN…

- Severity: High 8.2
- Published: Sep 14, 2026
- Affected: fixed in 0.27.26.
- Fixed in v0.27.26 (released Jul 9, 2026, 67 days before disclosure).
- The latest release, v0.28.71, is not affected.

### [CVE-2026-50197](https://cve.now/CVE-2026-50197): Skipper: opaAuthorizeRequestWithBody filter bypasses OPA policy on Transfer-Encoding: chunked / HTTP/2 requests

- Severity: High 7.8
- Published: Jul 17, 2026
- Affected: fixed in 0.26.10.
- Fixed in v0.26.10 (released Jun 1, 2026, 46 days before disclosure).
- The latest release, v0.28.71, is not affected.

### [CVE-2026-24470](https://cve.now/CVE-2026-24470): Skipper Ingress Controller Allows Unauthorized Access to Internal Services via ExternalName

- Severity: High 8.1
- Published: Jan 26, 2026
- Affected: fixed in 0.24.0.
- Fixed in v0.24.0 (released Jan 26, 2026, the day of disclosure).
- The latest release, v0.28.71, is not affected.

### [CVE-2026-23742](https://cve.now/CVE-2026-23742): Skipper arbitrary code execution through lua filters

- Severity: High 8.8
- Published: Jan 16, 2026
- Affected: fixed in 0.23.0.
- Fixed in v0.23.0 (released Jan 16, 2026, the day of disclosure).
- The latest release, v0.28.71, is not affected.

### [CVE-2022-38580](https://cve.now/CVE-2022-38580): Zalando Skipper v0.13.236 is vulnerable to Server-Side Request Forgery (SSRF).

- Severity: Critical 9.8
- Published: Oct 24, 2022
- Affected: fixed in 0.13.237.
- Fixed in 0.13.237.
- The latest release, v0.28.71, is not affected.

### [CVE-2022-34296](https://cve.now/CVE-2022-34296): In Zalando Skipper before 0.13.218, a query predicate could be bypassed via a prepared request.

- Severity: Unrated
- Published: Jun 22, 2022
- Affected: fixed in 0.13.218.
- Fixed in 0.13.218.
- The latest release, v0.28.71, is not affected.

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