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Vulnerability record · CVE-2026-31283 · published 13 April 2026

CVE-2026-31283: Allocation without limits vulnerability

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.

9.8 CVSS 3.1 Critical EPSS 0.55% · top 56.0% CWE-770 · Allocation without limits Deferred
9.8CVSS 3.1 base score
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-31283), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.