CVE-2024-52946
An issue was discovered in LemonLDAP::NG before 2.20.1. An Improper Check during session refresh...
An issue was discovered in LemonLDAP::NG before 2.20.1. An Improper Check during session refresh allows an authenticated user to raise their authentication level if the admin configured an "Adaptative authentication rule" with an increment instead of an absolute value.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
An issue was discovered in LemonLDAP::NG before 2.20.1. An Improper Check during session refresh allows an authenticated user to raise their authentication level if the admin configured an "Adaptative authentication rule" with an increment instead of an absolute value.
- Record
CVE-2024-52946- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-276
- Updated
- 2026-11-02
EUVDEUVD-2024-45980
An issue was discovered in LemonLDAP::NG before 2.20.1. An Improper Check during session refresh allows an authenticated user to raise their authentication level if the admin configured an "Adaptative authentication rule" with an increment instead of an absolute value.
- Record
EUVD-2024-45980- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3r2v-8348-hx3r
An issue was discovered in LemonLDAP::NG before 2.20.1. An Improper Check during session refresh...
An issue was discovered in LemonLDAP::NG before 2.20.1. An Improper Check during session refresh allows an authenticated user to raise their authentication level if the admin configured an "Adaptative authentication rule" with an increment instead of an absolute value.
- Record
GHSA-3r2v-8348-hx3r- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-276
- Updated
- 2026-11-02
NVD
An issue was discovered in LemonLDAP::NG before 2.20.1. An Improper Check during session refresh allows an authenticated user to raise their authentication level if the admin configured an "Adaptative authentication rule" with an increment instead of an absolute value.
- Record
CVE-2024-52946- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-276
- Updated
- 2026-11-02
OSV
An issue was discovered in LemonLDAP::NG before 2.20.1. An Improper Check during session refresh allows an authenticated user to raise their authentication level if the admin configured an "Adaptative authentication rule" with an increment instead of an absolute value.
- Record
CVE-2024-52946- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2024-52946
An issue was discovered in LemonLDAP::NG before 2.20.1. An Improper Check during session refresh allows an authenticated user to raise their authentication level if the admin configured an "Adaptative authentication rule" with an increment instead of an absolute value.
- Record
DEBIAN-CVE-2024-52946- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2024-52946
An issue was discovered in LemonLDAP::NG before 2.20.1. An Improper Check during session refresh allows an authenticated user to raise their authentication level if the admin configured an "Adaptative authentication rule" with an increment instead of an absolute value.
- Record
UBUNTU-CVE-2024-52946- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
lemonldap-ngDebian:12 |
before 2.16.1+ds-deb12u4, plus listed versions 2.16.1+ds-22.16.1+ds-deb12u12.16.1+ds-deb12u22.16.1+ds-deb12u3 |
2.16.1+ds-deb12u4 |
lemonldap-ngDebian:13 |
before 2.20.1+ds-1 | 2.20.1+ds-1 |
lemonldap-ngDebian:14 |
before 2.20.1+ds-1 | 2.20.1+ds-1 |
lemonldap-ngDebian:11 From an advisory covering 3 CVEs |
before 2.0.11+ds-4+deb11u6, plus listed versions 2.0.11+ds-42.0.11+ds-4+deb11u12.0.11+ds-4+deb11u22.0.11+ds-4+deb11u42.0.11+ds-4+deb11u5 |
2.0.11+ds-4+deb11u6 |
lemonldap-ngUbuntu:16.04:LTS |
All versions, plus listed versions 1.3.3-11.4.6-11.4.6-21.4.6-3 |
None known |
lemonldap-ngUbuntu:18.04:LTS |
All versions, plus listed versions 1.9.10-11.9.13-21.9.14-11.9.15-11.9.16-2 |
None known |
lemonldap-ngUbuntu:20.04:LTS |
All versions, plus listed versions 2.0.5+ds-22.0.6+ds-22.0.7+ds-2 |
None known |
lemonldap-ngUbuntu:22.04:LTS |
All versions, plus listed versions 2.0.11+ds-42.0.13+ds-32.0.13+ds-3ubuntu1 |
None known |
lemonldap-ngUbuntu:24.04:LTS |
All versions, plus listed versions 2.16.2+ds-12.17.1+ds-12.17.2+ds-12.17.2+ds-22.18.1+ds-12.18.2+ds-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-52946 is a high vulnerability (CVSS 8.8) in Lemonldap-ng, published November 18, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. Fixed in lemonldap-ng 2.16.1+ds-deb12u4.
References
gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/3255
lists.debian.org/debian-lts-announce/2024/11/msg00037.html
nvd.nist.gov/vuln/detail/CVE-2024-52946
github.com/advisories/GHSA-3r2v-8348-hx3r
security-tracker.debian.org/tracker/CVE-2024-52946
ubuntu.com/security/CVE-2024-52946
cve.org/CVERecord?id=CVE-2024-52946