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CRITICAL severity

CVE-2022-38580 — skipper

CRITICALFix: zalando/skipper#2058

CVE-2022-38580 is a critical-severity (CVSS 9.8) Server-Side Request Forgery (SSRF) vulnerability in github.com/zalando/skipper. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for github.com/zalando/skipper — see the affected versions and patch details below.

Skipper vulnerable to SSRF via X-Skipper-Proxy

Also known asGHSA-f2rj-m42r-6jm2GO-2022-1086
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2022-38580.

EPSS Exploitation Probability

via FIRST.org ↗
15.9%probability of exploitation in next 30 days
Moderate Risk+3.94%
Lower risk than most CVEs97th percentile — riskier than 97% of all scored CVEsHighest risk
0.00%21.1%42.3%63.4%48.8%51.3%11.0%12.0%15.9%May 26Jul 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐹github.com/zalando/skipper

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Impact

Skipper prior to version v0.13.236 is vulnerable to server-side request forgery (SSRF). An attacker can exploit a vulnerable version of proxy to access the internal metadata server or other unauthenticated URLs by adding an specific header (X-Skipper-Proxy) to the http request.

Patches

The problem was patched in version https://github.com/zalando/skipper/releases/tag/v0.13.237. Users need to upgrade to skipper >=v0.13.237.

Workarounds

Use dropRequestHeader("X-Skipper-Proxy") filter

References

https://github.com/zalando/skipper/releases/tag/v0.13.237

For more information

If you have any questions or comments about this advisory:

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/zalando/skipperall versions0.13.237go get github.com/zalando/skipper@v0.13.237

Affected Products

1 product · 1 configurations
Application
skipperzalando
< 0.13.237
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-51111remotemultiple

X-Skipper-Proxy v0.13.237 - Server Side Request Forgery (SSRF)

by Hosein Vita · Mar 28, 2023

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/zalando/skipper, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/zalando/skipper to 0.13.237 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-38580 is resolved across your whole dependency graph.

  3. Workarounds

    Restrict outbound requests from the affected component to an allowlist of hosts, block access to link-local and internal address ranges at the network layer, and require authentication on internal services so a forged request cannot reach them unauthenticated.

Frequently Asked Questions

### Impact Skipper prior to version v0.13.236 is vulnerable to server-side request forgery (SSRF). An attacker can exploit a vulnerable version of proxy to access the internal metadata server or other unauthenticated URLs by adding an specific header (X-Skipper-Proxy) to the http request. ### Patches The problem was patched in version https://github.com/zalando/skipper/releases/tag/v0.13.237. Users need to upgrade to skipper `>=v0.13.237`. ### Workarounds Use `dropRequestHeader("X-Skipper-Proxy")` filter ### References https://github.com/zalando/skipper/releases/tag/v0.13.237 ### For mo
O3 Security · Impact-Aware SCA

Is CVE-2022-38580 in your dependencies?

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CVE-2022-38580: skipper SSRF — Fixed in 0.13.237