CVE-2026-33591

CRITICALPre-NVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 10.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 58% 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
Trending — 3 sources updated this week
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 10.0Exploit: None knownExposed: 0

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

A vulnerability in Wapt Server before version 2.6.1.17813 allows a  remote unauthenticated attacker to bypass security restriction using a specially crafted packet and retrieve a valid session token for the targeted account.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: 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
Severity100% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

August 3, 2026

Last Modified

August 3, 2026

Advisory Details (3)

Auto-updated Aug 17, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Security bulletin - WAPT documentation

https://www.wapt.fr/en/doc/wapt-security-bulletin.html
generic🟡 PoC Available

Changelog - WAPT documentation

https://www.wapt.fr/en/doc/wapt-changelog.html#wapt-2-6-1-17813-2026-06-09
generic🟡 PoC Available

Changelog - WAPT documentation

https://www.wapt.fr/en/doc/wapt-changelog.html#wapt-2-6-0-16856-2026-06-09

Vendor Advisories for CVE-2026-33591(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 59× in last 7d / 150× 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 150 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-33591?
CVE-2026-33591 is a critical vulnerability published on August 3, 2026. A vulnerability in Wapt Server before version 2.6.1.17813 allows a remote unauthenticated attacker to bypass security restriction using a specially crafted packet and retrieve a valid session token for the targeted account.
When was CVE-2026-33591 disclosed?
CVE-2026-33591 was first published in the National Vulnerability Database on August 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-33591 actively exploited?
CVE-2026-33591 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.7% of all scored CVEs.
What is the CVSS score of CVE-2026-33591?
CVE-2026-33591 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2026-33591?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33591, 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

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