CVE-2026-85990Public exploitNetwork attack vectorHinoki check available

Administrator escalation via unguarded JSON-RPC methods

Published Oct 13, 2026 · Updated Oct 13, 2026

Missing authorization in Leantime before 3.10.0 allows remote authenticated users to create administrator accounts via JSON-RPC. PermissionEnforcer::enforce permits methods without RequiresPermission attributes, letting Api::createApiKeyWithProjects accept caller-selected roles and exposing plugin-management methods. A low-privilege browser session suffices for interactive administrator access and unauthorized plugin installation, activation, deactivation, or removal.

CVSS severity8.8
High
EPSS probability0.33%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authorization in Leantime before 3.10.0 allows remote authenticated users to create administrator accounts via JSON-RPC. PermissionEnforcer::enforce permits methods without RequiresPermission attributes, letting Api::createApiKeyWithProjects accept caller-selected roles and exposing plugin-management methods. A low-privilege browser session suffices for interactive administrator access and unauthorized plugin installation, activation, deactivation, or removal.

The record

CVE
CVE-2026-85990
Published
Oct 13, 2026
Updated
Oct 13, 2026
Vendor
Leantime
Product
Leantime
Classifications
CWE-862, CWE-269, T1136
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Leantime · Leantimeversion=< 3.10.0

Published CVSS scores

8.8LeantimeCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
CWE-269Improper Privilege Management
T1136Create Account

Public exploit references

  • poc.pyproof of concept · demonstrated

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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