CVE-2026-55202

HIGHPre-NVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-06-17. a secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
8.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.2Exploit: NoneExposed: 0

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

Tinyproxy through 1.11.3, fixed in commit 09312a1, fails to properly validate the Host header during stathost detection, allowing unauthenticated attackers to access the stats page by injecting a matching Host header or bypass detection via port manipulation. Remote attackers can trigger unauthorized access to internal proxy statistics or misroute requests as transparent proxy connections to circumvent access controls.

CVSS v3
8.2
EG Score
8.2(medium)
EG Risk
52(Track)
EG Risk 52/100SSVC: Track

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
Severity82% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
25.9%
KEV
Not listed

Published

June 17, 2026

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated Jun 17, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit, github_pr.
generic

Evil-WinRM - Path Traversal in download_dir() Function | Advisories | VulnCheck

https://www.vulncheck.com/advisories/evil-winrm-path-traversal-in-download-dir-function
github_pr

reqs: improve stathost detection

Fix merged in tinyproxy/tinyproxy PR #606 on 2026-04-17 — awaiting tagged release

https://github.com/tinyproxy/tinyproxy/pull/606
github_commit

commit 09312a185ae2 (tinyproxy/tinyproxy)

Fix landed in tinyproxy/tinyproxy commit 09312a185ae2 — awaiting tagged release

https://github.com/tinyproxy/tinyproxy/commit/09312a185ae25cc486b4ff5987638a7917a48bce

Vendor Advisories for CVE-2026-55202(1)

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 8× in last 7d / 91× 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.

Showing the most recent 100 of 118 total refreshes for this CVE.

  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:20 UTCEG score recompute
  3. 2026-07-22 14:08 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. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-16 21:14 UTCGHSA enrichment
  10. 2026-07-16 17:03 UTCEPSS rescore
  11. 2026-07-16 07:29 UTCGHSA enrichment
  12. 2026-07-15 20:18 UTCGHSA enrichment
  13. 2026-07-15 16:57 UTCEPSS rescore
  14. 2026-07-15 16:57 UTCEPSS rescore
  15. 2026-07-15 09:23 UTCGHSA enrichment
  16. 2026-07-15 02:00 UTCEPSS rescore
  17. 2026-07-15 02:00 UTCEPSS rescore
  18. 2026-07-14 22:27 UTCGHSA enrichment
  19. 2026-07-14 11:19 UTCGHSA enrichment
  20. 2026-07-14 00:23 UTCGHSA enrichment
  21. 2026-07-13 22:31 UTCEPSS rescore
  22. 2026-07-13 13:28 UTCGHSA enrichment
  23. 2026-07-13 06:13 UTCEPSS rescore
  24. 2026-07-13 06:13 UTCEPSS rescore
  25. 2026-07-13 02:33 UTCGHSA enrichment
Show 75 more
  1. 2026-07-12 15:38 UTCGHSA enrichment
  2. 2026-07-12 05:46 UTCEPSS rescore
  3. 2026-07-12 04:34 UTCGHSA enrichment
  4. 2026-07-11 17:38 UTCGHSA enrichment
  5. 2026-07-11 08:27 UTCEPSS rescore
  6. 2026-07-11 08:27 UTCEPSS rescore
  7. 2026-07-11 06:44 UTCGHSA enrichment
  8. 2026-07-10 19:49 UTCGHSA enrichment
  9. 2026-07-10 08:54 UTCGHSA enrichment
  10. 2026-07-09 21:52 UTCGHSA enrichment
  11. 2026-07-09 19:10 UTCEPSS rescore
  12. 2026-07-09 19:10 UTCEPSS rescore
  13. 2026-07-09 10:57 UTCGHSA enrichment
  14. 2026-07-09 00:01 UTCGHSA enrichment
  15. 2026-07-08 15:16 UTCEPSS rescore
  16. 2026-07-08 15:16 UTCEPSS rescore
  17. 2026-07-08 13:06 UTCGHSA enrichment
  18. 2026-07-08 00:35 UTCGHSA enrichment
  19. 2026-07-07 13:46 UTCEPSS rescore
  20. 2026-07-07 13:46 UTCEPSS rescore
  21. 2026-07-07 13:41 UTCGHSA enrichment
  22. 2026-07-07 02:46 UTCGHSA enrichment
  23. 2026-07-06 16:27 UTCEPSS rescore
  24. 2026-07-06 16:27 UTCEPSS rescore
  25. 2026-07-06 15:51 UTCGHSA enrichment
  26. 2026-07-06 04:56 UTCGHSA enrichment
  27. 2026-07-06 02:23 UTCEPSS rescore
  28. 2026-07-06 02:23 UTCEPSS rescore
  29. 2026-07-05 17:53 UTCGHSA enrichment
  30. 2026-07-05 06:58 UTCGHSA enrichment
  31. 2026-07-05 02:31 UTCEPSS rescore
  32. 2026-07-05 02:30 UTCEPSS rescore
  33. 2026-07-04 19:59 UTCGHSA enrichment
  34. 2026-07-04 09:04 UTCGHSA enrichment
  35. 2026-07-04 06:31 UTCEPSS rescore
  36. 2026-07-04 06:31 UTCEPSS rescore
  37. 2026-07-03 22:07 UTCGHSA enrichment
  38. 2026-07-03 11:11 UTCGHSA enrichment
  39. 2026-07-03 00:10 UTCGHSA enrichment
  40. 2026-07-02 13:16 UTCGHSA enrichment
  41. 2026-07-02 02:18 UTCGHSA enrichment
  42. 2026-07-01 15:23 UTCGHSA enrichment
  43. 2026-07-01 15:07 UTCEPSS rescore
  44. 2026-07-01 04:29 UTCGHSA enrichment
  45. 2026-06-30 23:22 UTCEPSS rescore
  46. 2026-06-30 17:26 UTCGHSA enrichment
  47. 2026-06-30 06:30 UTCGHSA enrichment
  48. 2026-06-29 19:34 UTCGHSA enrichment
  49. 2026-06-29 08:39 UTCGHSA enrichment
  50. 2026-06-28 21:42 UTCGHSA enrichment
  51. 2026-06-28 14:07 UTCEPSS rescore
  52. 2026-06-28 10:47 UTCGHSA enrichment
  53. 2026-06-28 04:56 UTCEPSS rescore
  54. 2026-06-28 04:56 UTCEPSS rescore
  55. 2026-06-27 23:53 UTCGHSA enrichment
  56. 2026-06-27 12:58 UTCGHSA enrichment
  57. 2026-06-27 03:08 UTCEPSS rescore
  58. 2026-06-27 02:03 UTCGHSA enrichment
  59. 2026-06-26 15:08 UTCGHSA enrichment
  60. 2026-06-26 04:13 UTCGHSA enrichment
  61. 2026-06-25 17:18 UTCGHSA enrichment
  62. 2026-06-25 13:49 UTCEPSS rescore
  63. 2026-06-25 06:24 UTCGHSA enrichment
  64. 2026-06-24 19:28 UTCGHSA enrichment
  65. 2026-06-24 14:05 UTCEPSS rescore
  66. 2026-06-24 06:36 UTCGHSA enrichment
  67. 2026-06-23 21:33 UTCEPSS rescore
  68. 2026-06-23 21:33 UTCEPSS rescore
  69. 2026-06-23 19:40 UTCGHSA enrichment
  70. 2026-06-23 08:45 UTCGHSA enrichment
  71. 2026-06-22 21:49 UTCGHSA enrichment
  72. 2026-06-22 14:25 UTCEPSS rescore
  73. 2026-06-22 14:25 UTCEPSS rescore
  74. 2026-06-22 10:54 UTCGHSA enrichment
  75. 2026-06-21 23:54 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-55202?
CVE-2026-55202 is a high vulnerability published on June 17, 2026. Tinyproxy through 1.11.3, fixed in commit 09312a1, fails to properly validate the Host header during stathost detection, allowing unauthenticated attackers to access the stats page by injecting a matching Host header or bypass detection via port manipulation. Remote attackers can trigger…
When was CVE-2026-55202 disclosed?
CVE-2026-55202 was first published in the National Vulnerability Database on June 17, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55202 actively exploited?
CVE-2026-55202 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-55202?
CVE-2026-55202 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-55202?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55202, 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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