CVE-2024-52946Network attack vector

Authentication-level escalation via repeated session refresh

Published Nov 18, 2024 · Updated Nov 3, 2025

Improper session-refresh checks in LemonLDAP::NG before 2.20.1 allow remote authenticated users to raise the session authentication level. The session-rights refresh path reapplies an increment-based adaptive authentication rule during refresh, increasing the session's stored level. Exploitation requires a valid user session and an administrator-configured incremental adaptive rule; the raised level can unlock protected resources.

CVSS severity8.8
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper session-refresh checks in LemonLDAP::NG before 2.20.1 allow remote authenticated users to raise the session authentication level. The session-rights refresh path reapplies an increment-based adaptive authentication rule during refresh, increasing the session's stored level. Exploitation requires a valid user session and an administrator-configured incremental adaptive rule; the raised level can unlock protected resources.

The record

CVE
CVE-2024-52946
Published
Nov 18, 2024
Updated
Nov 3, 2025
Vendor
LemonLDAP::NG
Product
LemonLDAP::NG
Classifications
CWE-276
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record 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=0 <2.20.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LemonLDAP::NG · LemonLDAP::NGversion=0 <2.20.1

Published CVSS scores

8.8CISA-ADPCVSS: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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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