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
HIGHPre-NVD 7.87.8—Trending — 3 sources updated this weekElevated
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 57% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.8
- EG Score
- 7.8(medium)
- EG Risk
- 66(Attend)EG Risk 66/100SSVC: Attend
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity78% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS
- 42.7%
- KEV
- Not listed
Published
July 8, 2026
Last Modified
July 20, 2026
Advisory Details (4)
Auto-updated Jul 17, 2026🔬 Proof of concept available. Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available
v0.26.10
Patch available: zalando/skipper v0.26.10
https://github.com/zalando/skipper/releases/tag/v0.26.10github_commit
commit 3152f3b0bb52 (zalando/skipper)
Fix landed in zalando/skipper commit 3152f3b0bb52 — awaiting tagged release
https://github.com/zalando/skipper/commit/3152f3b0bb52ca89c3564be42434db0a2a1cea23github_pr
Fix: security opa authz bypass
Fix merged in zalando/skipper PR #4041 on 2026-06-01 — awaiting tagged release
https://github.com/zalando/skipper/pull/4041github Patch Available🟡 PoC Available
opaAuthorizeRequestWithBody filter bypasses OPA policy on Transfer-Encoding: chunked / HTTP/2 requests · Advisory · zalando/skipper · GitHub
https://github.com/zalando/skipper/security/advisories/GHSA-659f-rgp5-w4wfVendor Advisories for CVE-2026-50197(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/zalando/skipper | — | 0.26.10 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 10× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 03:18 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:25 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-19 03:42 UTCEG score recompute▼ 0.90
- 2026-07-19 02:29 UTCEPSS rescore
- 2026-07-17 19:49 UTCMITRE cvelistV5CVSS v3 → 7.8 · CVSS v4 → 7.8
- 2026-07-08 20:46 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-444
Frequently asked(5)
What is CVE-2026-50197?
CVE-2026-50197 is a high vulnerability published on July 8, 2026. 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…
When was CVE-2026-50197 disclosed?
CVE-2026-50197 was first published in the National Vulnerability Database on July 8, 2026, with the most recent update on July 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50197 actively exploited?
CVE-2026-50197 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-50197?
CVE-2026-50197 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-50197?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50197, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-50197
Is Your Infrastructure Affected by CVE-2026-50197?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.