CVE-2026-75601

MEDIUMPre-NVD 4.34.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This medium-severity CVE scores 4.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (31st percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated
4.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.3Exploit: No code on recordExposed services: Not assessed

The CVE record names the fixed release — apply it.

Static Web Server (SWS) is a production-ready web server suitable for static web files or assets. Through 2.43.0, instances with both basic-auth and metrics features enabled process the /metrics endpoint before the basic-auth check in src/handler.rs, allowing an unauthenticated remote attacker to retrieve Prometheus metrics that disclose virtual host names, request volumes, error rates, latency distributions, and active connections. This issue is fixed in version 2.44.0.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
35
EG Risk 35/100

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 (value × EchelonGraph’s weight)
Severity43% × 45%
The EG Score, 4.3 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
31st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 26, 2026

Last Modified

September 9, 2026

Advisory Details (2)

Auto-updated Aug 26, 2026
Fix named in the CVE record. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

Authentication bypass on /metrics endpoint when --basic-auth is enabled · Advisory · static-web-server/static-web-server · GitHub

https://github.com/static-web-server/static-web-server/security/advisories/GHSA-97q6-jph8-rxgm
GitHub commit

commit a51444c81abb (static-web-server/static-web-server)

Fix landed in static-web-server/static-web-server commit a51444c81abb — awaiting tagged release

https://github.com/static-web-server/static-web-server/commit/a51444c81abb7d417fd931f5df58227dd04192f5

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 55× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 2 repeat rows among the latest 88 are merged into the row they repeat.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  3. 2026-10-12 15:39 UTCEG score recompute
  4. 2026-10-11 19:24 UTCEG score recompute
  5. 2026-10-11 16:40 UTCEG score recompute
  6. 2026-10-11 13:59 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-10 06:04 UTCEG score recompute
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  11. 2026-10-09 03:20 UTCEG score recompute
  12. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  13. 2026-10-08 01:46 UTCEG score recompute
  14. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  15. 2026-10-06 23:52 UTCEG score recompute
  16. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  17. 2026-10-06 01:41 UTCEG score recompute
  18. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 30th percentile
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  20. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  21. 2026-10-04 01:57 UTCEG score recompute
  22. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  23. 2026-10-03 01:52 UTCEG score recompute
  24. 2026-10-02 03:39 UTCEG score recompute
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 30th percentile
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  1. 2026-10-01 04:13 UTCEG score recompute
  2. 2026-09-30 06:01 UTCEG score recompute
  3. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  4. 2026-09-28 21:20 UTCEG score recompute
  5. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  6. 2026-09-27 18:48 UTCEG score recompute
  7. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  8. 2026-09-26 20:32 UTCEG score recompute
  9. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  10. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  11. 2026-09-24 18:48 UTCEG score recompute
  12. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  13. 2026-09-23 19:55 UTCEG score recompute
  14. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  15. 2026-09-22 20:48 UTCEG score recompute
  16. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  17. 2026-09-21 22:37 UTCEG score recompute
  18. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  19. 2026-09-21 00:24 UTCEG score recompute
  20. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  21. 2026-09-20 02:11 UTCEG score recompute
  22. 2026-09-19 03:57 UTCEG score recompute
  23. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  24. 2026-09-18 05:45 UTCEG score recompute
  25. 2026-09-17 07:33 UTCEG score recompute
  26. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  27. 2026-09-16 09:21 UTCEG score recompute
  28. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  29. 2026-09-15 11:08 UTCEG score recompute
  30. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  31. 2026-09-14 12:15 UTCEG score recompute
  32. 2026-09-12 15:50 UTCEG score recompute
  33. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  34. 2026-09-11 17:38 UTCEG score recompute
  35. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  36. 2026-09-10 19:26 UTCEG score recompute
  37. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  38. 2026-09-09 09:38 UTCEG score recompute
  39. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  40. 2026-09-08 11:26 UTCEG score recompute
  41. 2026-09-07 11:54 UTCEG score recompute
  42. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  43. 2026-09-06 13:37 UTCEG score recompute
  44. 2026-09-04 17:12 UTCEG score recompute
  45. 2026-09-02 20:32 UTCEG score recompute
  46. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  47. 2026-09-01 20:11 UTCEG score recompute
  48. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  49. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  50. 2026-08-30 23:47 UTCEG score recompute
  51. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  52. 2026-08-30 01:35 UTCEG score recompute
  53. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  54. 2026-08-29 03:23 UTCEG score recompute
  55. 2026-08-29 03:02 UTCEG score recompute
  56. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  57. 2026-08-27 18:41 UTCEG score recompute
  58. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  59. 2026-08-26 20:26 UTCEG score recompute
  60. 2026-08-26 20:07 UTCEG score recomputeFirst assessed: 4.3 MEDIUM
  61. 2026-08-26 20:06 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-75601?
CVE-2026-75601 is a medium-severity vulnerability; its CVE record was published on August 26, 2026. Static Web Server (SWS) is a production-ready web server suitable for static web files or assets. Through 2.43.0, instances with both basic-auth and metrics features enabled process the /metrics endpoint before the basic-auth check in src/handler.rs, allowing an unauthenticated remote attacker to…
When was the CVE record for CVE-2026-75601 published?
The CVE record for CVE-2026-75601 was published on August 26, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 9, 2026; the record at its source may have been updated since.
Is CVE-2026-75601 actively exploited?
CVE-2026-75601 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (31st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-75601?
CVE-2026-75601 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-75601?
The CVE record for CVE-2026-75601 names the fix: "This issue is fixed in version 2.44.0."

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