CVE-2026-45566

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 95% 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
6.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.1Exploit: NoneExposed: 0

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

Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, the login flow allow-lists next URLs by rejecting strings containing https:// or http:// substrings, then constructs https://{request.host}{next_url} and the JS client redirects via window.location.replace(). The block does not consider the userinfo@host syntax. [email protected]/path produces https://[email protected]/path, which all modern browsers route to evil.example. At time of publication, there are no publicly available patches.

CVSS v3
6.1
EG Score
6.1(medium)
EPSS
4.9%
KEV
Not listed

Published

June 10, 2026

Last Modified

June 10, 2026

Advisory Details (1)

Auto-updated Jun 13, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Open redirect on /login?next= via basic-auth userinfo syntax bypass · Advisory · roxy-wi/roxy-wi · GitHub

https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-xw9x-68gg-mp5h

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 59× 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. 2026-07-13 00:31 UTCEG score recompute
  2. 2026-07-11 19:59 UTCEG score recompute
  3. 2026-07-11 08:27 UTCEPSS rescore
  4. 2026-07-10 18:49 UTCEG score recompute
  5. 2026-07-09 19:10 UTCEPSS rescore
  6. 2026-07-08 23:27 UTCEG score recompute
  7. 2026-07-08 15:16 UTCEPSS rescore
  8. 2026-07-07 21:57 UTCEG score recompute
  9. 2026-07-07 13:46 UTCEPSS rescore
  10. 2026-07-06 16:27 UTCEPSS rescore
  11. 2026-07-06 02:23 UTCEPSS rescore
  12. 2026-07-05 23:26 UTCEG score recompute
  13. 2026-07-05 02:30 UTCEPSS rescore
  14. 2026-07-04 22:16 UTCEG score recompute
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-03 21:06 UTCEG score recompute
  17. 2026-07-02 19:57 UTCEG score recompute
  18. 2026-07-01 18:47 UTCEG score recompute
  19. 2026-07-01 15:07 UTCEPSS rescore
  20. 2026-06-30 23:22 UTCEPSS rescore
  21. 2026-06-30 17:37 UTCEG score recompute
  22. 2026-06-29 15:47 UTCEG score recompute
  23. 2026-06-29 14:06 UTCEPSS rescore
  24. 2026-06-29 14:06 UTCEPSS rescore
  25. 2026-06-28 14:35 UTCEG score recompute
Show 41 more
  1. 2026-06-28 14:07 UTCEPSS rescore
  2. 2026-06-28 04:56 UTCEPSS rescore
  3. 2026-06-28 04:56 UTCEPSS rescore
  4. 2026-06-27 13:25 UTCEG score recompute
  5. 2026-06-27 03:08 UTCEPSS rescore
  6. 2026-06-26 12:16 UTCEG score recompute
  7. 2026-06-25 13:49 UTCEPSS rescore
  8. 2026-06-25 11:03 UTCEG score recompute
  9. 2026-06-24 14:05 UTCEPSS rescore
  10. 2026-06-24 09:53 UTCEG score recompute
  11. 2026-06-23 21:33 UTCEPSS rescore
  12. 2026-06-23 21:33 UTCEPSS rescore
  13. 2026-06-23 08:41 UTCEG score recompute
  14. 2026-06-22 14:25 UTCEPSS rescore
  15. 2026-06-22 14:25 UTCEPSS rescore
  16. 2026-06-22 07:29 UTCEG score recompute
  17. 2026-06-21 14:56 UTCEPSS rescore
  18. 2026-06-21 14:56 UTCEPSS rescore
  19. 2026-06-21 05:46 UTCEG score recompute
  20. 2026-06-21 01:59 UTCEPSS rescore
  21. 2026-06-20 04:36 UTCEG score recompute
  22. 2026-06-19 19:25 UTCEPSS rescore
  23. 2026-06-19 02:36 UTCEG score recompute
  24. 2026-06-18 17:52 UTCEPSS rescore
  25. 2026-06-18 17:52 UTCEPSS rescore
  26. 2026-06-18 01:25 UTCEG score recompute
  27. 2026-06-17 17:53 UTCEPSS rescore
  28. 2026-06-17 00:16 UTCEG score recompute
  29. 2026-06-16 17:52 UTCEPSS rescore
  30. 2026-06-15 23:06 UTCEG score recompute
  31. 2026-06-15 17:49 UTCEPSS rescore
  32. 2026-06-14 21:57 UTCEG score recompute
  33. 2026-06-13 23:00 UTCEPSS rescore
  34. 2026-06-13 20:47 UTCEG score recompute
  35. 2026-06-12 23:12 UTCEPSS rescore
  36. 2026-06-12 23:12 UTCEPSS rescore
  37. 2026-06-12 19:37 UTCEG score recompute
  38. 2026-06-11 18:28 UTCEG score recompute
  39. 2026-06-11 14:00 UTCEPSS rescore
  40. 2026-06-10 17:18 UTCEG score recompute
  41. 2026-06-10 17:18 UTCNVD updatefirst tracked

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Frequently asked(5)

What is CVE-2026-45566?
CVE-2026-45566 is a medium vulnerability published on June 10, 2026. Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, the login flow allow-lists next URLs by rejecting strings containing https:// or http:// substrings, then constructs https://{request.host}{next_url} and the JS client redirects via…
When was CVE-2026-45566 disclosed?
CVE-2026-45566 was first published in the National Vulnerability Database on June 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45566 actively exploited?
CVE-2026-45566 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45566?
CVE-2026-45566 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-45566?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45566, 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.

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