CVE-2026-56097

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-10-01. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in rubygem-katello. An SQL injection vulnerability exists in the Red Hat Satellite Katello Registry Proxy. The application fails to sanitize input parameters used in database queries within the RegistryProxiesController. The methods check_blob_push_org_label and get_matching_products_from_org take user-supplied labels directly from the request path and interpolate them into raw SQL fragments. This flaw is accessible to a user with only the create_personal_access_tokens permission, even if the user access is restricted, with no Organization or Location assigned.

CVSS v3
6.5
EG Score
6.5MEDIUMhigh confidence
EG Risk
34
EG Risk 34/100CISA SSVC

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 computed
Severity65% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
17th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 1, 2026

Last Modified

October 2, 2026

Advisory Details (3)

Auto-updated Oct 1, 2026
Patch available. Sources: redhat.
redhat

2490543 – (CVE-2026-56097) CVE-2026-56097 rubygem-katello: SQL injection in Registry Proxy via labels

https://bugzilla.redhat.com/show_bug.cgi?id=2490543
redhat Patch Available

CVE-2026-56097 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-56097
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:74503

Vendor Advisories for CVE-2026-56097(5)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrubygem-katello-0:4.20.0.11-1.el9sat2026-10-01redhat
redhatrubygem-katello-0:4.14.0.23-1.el9sat2026-10-01redhat
redhatrubygem-katello-0:4.18.0.24-1.el9sat2026-10-01redhat
redhatrubygem-katello-0:4.16.0.20-1.el9sat2026-10-01redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 25× in last 7d / 25× 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.

  1. 2026-10-03 18:47 UTCEG score recompute
  2. 2026-10-03 18:47 UTCVendor advisory
  3. 2026-10-03 18:46 UTCGHSA enrichment
  4. 2026-10-03 14:26 UTCEPSS rescore
  5. 2026-10-02 18:20 UTCVendor advisory
  6. 2026-10-02 18:20 UTCVendor advisory
  7. 2026-10-02 18:20 UTCGHSA enrichment
  8. 2026-10-02 18:20 UTCEG score recompute
  9. 2026-10-02 18:20 UTCVendor advisory
  10. 2026-10-02 18:20 UTCGHSA enrichment
  11. 2026-10-02 18:20 UTCGHSA enrichment
  12. 2026-10-02 17:56 UTCEPSS rescore
  13. 2026-10-02 17:47 UTCEG score recompute
  14. 2026-10-02 17:47 UTCVendor advisory
  15. 2026-10-02 17:47 UTCGHSA enrichment
  16. 2026-10-02 00:25 UTCEG score recompute
  17. 2026-10-02 00:25 UTCVendor advisory
  18. 2026-10-02 00:25 UTCGHSA enrichment
  19. 2026-10-01 23:53 UTCEG score recompute
  20. 2026-10-01 23:53 UTCGHSA enrichment
  21. 2026-10-01 20:40 UTCEG score recompute
  22. 2026-10-01 20:40 UTCGHSA enrichment
  23. 2026-10-01 18:30 UTCEG score recompute
  24. 2026-10-01 17:21 UTCEG score recompute
  25. 2026-10-01 17:20 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-56097?
CVE-2026-56097 is a medium vulnerability published on October 1, 2026. A flaw was found in rubygem-katello. An SQL injection vulnerability exists in the Red Hat Satellite Katello Registry Proxy. The application fails to sanitize input parameters used in database queries within the RegistryProxiesController. The methods checkblobpushorglabel and…
When was CVE-2026-56097 disclosed?
CVE-2026-56097 was first published on October 1, 2026, with the most recent update on October 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56097 actively exploited?
CVE-2026-56097 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (17th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-56097?
CVE-2026-56097 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-56097?
A fix for CVE-2026-56097 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-56097 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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