CVE-2026-31283

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

In Totara LMS v19.1.5 and before, the forgot password API does not implement rate limiting for the target email address. which can be used for an Email Bombing attack. NOTE: the Supplier's position is that the pwresettime configuration defaults to 30 minutes, the pwresettime configuration is a hard control enforced via flag PWRESET_STATUS_ALREADYSENT, and no further password-reset email messages are sent if this flag is active for a specific email address.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

April 13, 2026

Last Modified

April 24, 2026

Advisory Details (2)

Auto-updated Sep 9, 2026
No patch confirmed yet.
generic

Enterprise Learning Management System | Totara USA

https://totara.com/
generic

GitHub - saykino/CVE-2026-31283 · GitHub

https://github.com/saykino/CVE-2026-31283

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 29× 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 245 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-31283?
CVE-2026-31283 is a critical vulnerability published on April 13, 2026. In Totara LMS v19.1.5 and before, the forgot password API does not implement rate limiting for the target email address. which can be used for an Email Bombing attack. NOTE: the Supplier's position is that the pwresettime configuration defaults to 30 minutes, the pwresettime configuration is a hard…
When was CVE-2026-31283 disclosed?
CVE-2026-31283 was first published in the National Vulnerability Database on April 13, 2026, with the most recent update on April 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-31283 actively exploited?
CVE-2026-31283 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 66.8% of all scored CVEs.
What is the CVSS score of CVE-2026-31283?
CVE-2026-31283 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-31283?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31283, 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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