CVE-2026-44305 (GCVE-0-2026-44305)
Vulnerability from cvelistv5
Published
2026-05-12 21:28
Modified
2026-05-13 14:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-295 - Improper Certificate Validation
Summary
Lemur manages TLS certificate creation. Prior to 1.9.0, when LDAP TLS is enabled (LDAP_USE_TLS = True), Lemur's LDAP authentication module unconditionally disables TLS certificate verification at the global ldap module level. This allows a man-in-the-middle attacker positioned between Lemur and the LDAP server to intercept all authentication credentials. This vulnerability is fixed in 1.9.0.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
{
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"metrics": [
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"id": "CVE-2026-44305",
"options": [
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{
"Automatable": "no"
},
{
"Technical Impact": "total"
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],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T14:26:27.895767Z",
"version": "2.0.3"
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"dateUpdated": "2026-05-13T14:26:51.752Z",
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"tags": [
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"url": "https://github.com/Netflix/lemur/security/advisories/GHSA-vr7c-r5gj-j3w5"
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"title": "CISA ADP Vulnrichment"
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"cna": {
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"product": "lemur",
"vendor": "Netflix",
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"version": "\u003c 1.9.0"
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"value": "Lemur manages TLS certificate creation. Prior to 1.9.0, when LDAP TLS is enabled (LDAP_USE_TLS = True), Lemur\u0027s LDAP authentication module unconditionally disables TLS certificate verification at the global ldap module level. This allows a man-in-the-middle attacker positioned between Lemur and the LDAP server to intercept all authentication credentials. This vulnerability is fixed in 1.9.0."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
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"problemTypes": [
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"descriptions": [
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"source": {
"advisory": "GHSA-vr7c-r5gj-j3w5",
"discovery": "UNKNOWN"
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"title": "Lemur: LDAP TLS certificate verification globally disabled enables credential interception"
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"datePublished": "2026-05-12T21:28:06.362Z",
"dateReserved": "2026-05-05T17:39:31.113Z",
"dateUpdated": "2026-05-13T14:26:51.752Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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