CVE-2026-9190

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-05. A secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.1EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 9.1Exploit: None knownExposed services: Not assessed

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

An HTTP request smuggling vulnerability in the HTTP App Server of Progress MarkLogic Server before 11.3.6 and 12.0.3 allows a remote attacker to bypass authentication and authorization checks, hijack a legitimate user's session, or capture credentials. The vulnerability occurs when a crafted HTTP request containing both Content-Length and Transfer-Encoding headers causes a reverse proxy and MarkLogic Server to interpret request boundaries differently.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
56
EG Risk 56/100CISA 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
Severity91% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.7%
EPSS %ILE
52nd
KEV
Not listed

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

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). 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

August 5, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Sep 15, 2026
No patch confirmed yet.
generic

Progress Customer Community

https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-August-2026

Vendor Advisories for CVE-2026-9190(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 25× in last 7d / 149× 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 376 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9190?
CVE-2026-9190 is a critical vulnerability published on August 5, 2026. An HTTP request smuggling vulnerability in the HTTP App Server of Progress MarkLogic Server before 11.3.6 and 12.0.3 allows a remote attacker to bypass authentication and authorization checks, hijack a legitimate user's session, or capture credentials. The vulnerability occurs when a crafted HTTP…
When was CVE-2026-9190 disclosed?
CVE-2026-9190 was first published on August 5, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9190 actively exploited?
CVE-2026-9190 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (52nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-9190?
CVE-2026-9190 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-9190?
No fix for CVE-2026-9190 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-9190 are linked in the Vendor Advisories panel on this page.

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