CVE-2026-20191

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-01. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:github_m, epss, ghsa
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read...

A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read arbitrary files from a restricted container. 

This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to read arbitrary files from a restricted container of the affected device.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
51.3%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 1, 2026

Vendor Advisories for CVE-2026-20191(2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 64× 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. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
  5. 2026-07-19 14:31 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 02:29 UTCEPSS rescore
  8. 2026-07-19 02:28 UTCEPSS rescore
  9. 2026-07-18 10:04 UTCEPSS rescore
  10. 2026-07-18 10:04 UTCEPSS rescore
  11. 2026-07-16 23:03 UTCGHSA enrichment
  12. 2026-07-16 17:03 UTCEPSS rescore
  13. 2026-07-16 17:03 UTCEPSS rescore
  14. 2026-07-16 11:20 UTCGHSA enrichment
  15. 2026-07-15 23:37 UTCGHSA enrichment
  16. 2026-07-15 16:57 UTCEPSS rescore
  17. 2026-07-15 16:57 UTCEPSS rescore
  18. 2026-07-15 11:53 UTCGHSA enrichment
  19. 2026-07-15 02:00 UTCEPSS rescore
  20. 2026-07-15 02:00 UTCEPSS rescore
  21. 2026-07-15 00:10 UTCGHSA enrichment
  22. 2026-07-14 12:26 UTCGHSA enrichment
  23. 2026-07-14 00:42 UTCGHSA enrichment
  24. 2026-07-13 22:30 UTCEPSS rescore
  25. 2026-07-13 12:59 UTCGHSA enrichment
Show 39 more
  1. 2026-07-13 06:13 UTCEPSS rescore
  2. 2026-07-13 06:13 UTCEPSS rescore
  3. 2026-07-13 01:16 UTCGHSA enrichment
  4. 2026-07-12 13:32 UTCGHSA enrichment
  5. 2026-07-12 05:46 UTCEPSS rescore
  6. 2026-07-12 05:46 UTCEPSS rescore
  7. 2026-07-12 01:47 UTCGHSA enrichment
  8. 2026-07-11 14:03 UTCGHSA enrichment
  9. 2026-07-11 08:27 UTCEPSS rescore
  10. 2026-07-11 02:17 UTCGHSA enrichment
  11. 2026-07-10 14:31 UTCGHSA enrichment
  12. 2026-07-10 02:48 UTCGHSA enrichment
  13. 2026-07-09 19:10 UTCEPSS rescore
  14. 2026-07-09 15:05 UTCGHSA enrichment
  15. 2026-07-09 03:16 UTCGHSA enrichment
  16. 2026-07-08 15:32 UTCGHSA enrichment
  17. 2026-07-08 15:15 UTCEPSS rescore
  18. 2026-07-08 15:15 UTCEPSS rescore
  19. 2026-07-08 03:49 UTCGHSA enrichment
  20. 2026-07-07 16:05 UTCGHSA enrichment
  21. 2026-07-07 13:46 UTCEPSS rescore
  22. 2026-07-07 04:15 UTCGHSA enrichment
  23. 2026-07-06 16:29 UTCGHSA enrichment
  24. 2026-07-06 16:27 UTCEPSS rescore
  25. 2026-07-06 04:46 UTCGHSA enrichment
  26. 2026-07-06 02:23 UTCEPSS rescore
  27. 2026-07-05 16:59 UTCGHSA enrichment
  28. 2026-07-05 05:15 UTCGHSA enrichment
  29. 2026-07-05 02:30 UTCEPSS rescore
  30. 2026-07-05 02:30 UTCEPSS rescore
  31. 2026-07-04 17:31 UTCGHSA enrichment
  32. 2026-07-04 06:31 UTCEPSS rescore
  33. 2026-07-04 05:48 UTCGHSA enrichment
  34. 2026-07-03 18:04 UTCGHSA enrichment
  35. 2026-07-03 06:18 UTCGHSA enrichment
  36. 2026-07-02 18:30 UTCGHSA enrichment
  37. 2026-07-02 06:47 UTCGHSA enrichment
  38. 2026-07-01 19:04 UTCEG score recompute
  39. 2026-07-01 19:04 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-20191?
CVE-2026-20191 is a high vulnerability published on July 1, 2026. A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read... A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read arbitrary files from a restricted container.  This vulnerability is due to insufficient…
When was CVE-2026-20191 disclosed?
CVE-2026-20191 was first published in the National Vulnerability Database on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20191 actively exploited?
CVE-2026-20191 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 51.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-20191?
CVE-2026-20191 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-20191?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20191, 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

Explore the affected products and dependency analysis for CVE-2026-20191

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