CVE-2019-15941

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

OpenID Connect Issuer in LemonLDAP::NG 2.x through 2.0.5 may allow an attacker to bypass access control rules via a crafted OpenID Connect authorization request. To be vulnerable, there must exist an OIDC Relaying party within the LemonLDAP configuration with weaker access control rules than the target RP, and no filtering on redirection URIs.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation2% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
80.6%
KEV
Not listed

Published

September 25, 2019

Last Modified

May 28, 2025

Advisory Details (3)

Auto-updated May 27, 2026
No patch confirmed yet.
generic

[SECURITY] [DSA 4533-1] lemonldap-ng security update

https://www.debian.org/security/2019/dsa-4533
generic

Bugtraq: [SECURITY] [DSA 4533-1] lemonldap-ng security update

https://seclists.org/bugtraq/2019/Sep/46
generic

[Security:high] oidc authorization codes are not tied to their RP (#1881) · Issues · LemonLDAP NG / lemonldap-ng · GitLab

https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1881

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 15× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 01:41 UTCEG score recompute
  3. 2026-07-22 22:20 UTCEG score recompute
  4. 2026-07-22 14:05 UTCEPSS rescore
  5. 2026-07-21 15:22 UTCEPSS rescore
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  7. 2026-07-20 17:04 UTCEPSS rescore
  8. 2026-07-20 05:40 UTCOSV refresh
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  1. 2026-07-06 02:20 UTCEPSS rescore
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  3. 2026-07-04 06:28 UTCEPSS rescore
  4. 2026-07-04 06:28 UTCEPSS rescore
  5. 2026-07-02 22:05 UTCOSV refresh
  6. 2026-07-02 16:56 UTCEPSS rescore
  7. 2026-07-01 15:03 UTCEPSS rescore
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  9. 2026-06-30 23:20 UTCEPSS rescore
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  22. 2026-06-22 14:23 UTCEPSS rescore
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  24. 2026-06-21 14:54 UTCEPSS rescore
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  28. 2026-06-19 19:23 UTCEPSS rescore
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  30. 2026-06-18 17:50 UTCEPSS rescore
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  36. 2026-06-14 18:13 UTCOSV refresh
  37. 2026-06-13 22:58 UTCEPSS rescore
  38. 2026-06-12 23:09 UTCEPSS rescore
  39. 2026-06-11 13:58 UTCEPSS rescore
  40. 2026-06-11 13:58 UTCEPSS rescore
  41. 2026-06-10 22:16 UTCEPSS rescore
  42. 2026-06-10 13:19 UTCEPSS rescore
  43. 2026-06-08 14:15 UTCEPSS rescore
  44. 2026-06-08 14:14 UTCEPSS rescore
  45. 2026-06-07 15:23 UTCEPSS rescore
  46. 2026-06-07 15:22 UTCEPSS rescore
  47. 2026-06-06 13:45 UTCEPSS rescore
  48. 2026-06-06 13:45 UTCEPSS rescore
  49. 2026-06-05 22:45 UTCEPSS rescore
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  55. 2026-06-02 20:11 UTCEPSS rescore
  56. 2026-06-01 13:50 UTCEPSS rescore
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  58. 2026-05-31 22:29 UTCEPSS rescore
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  62. 2026-05-29 13:42 UTCEPSS rescore
  63. 2026-05-28 13:43 UTCEPSS rescore
  64. 2026-05-27 13:56 UTCEG score recompute
  65. 2026-05-27 13:56 UTCGHSA enrichment
  66. 2026-05-27 13:38 UTCEPSS rescore
  67. 2026-05-26 13:42 UTCEPSS rescore
  68. 2026-05-26 13:42 UTCEPSS rescore
  69. 2026-05-26 07:17 UTCEPSS rescore
  70. 2026-05-26 07:17 UTCEPSS rescore
  71. 2026-05-25 03:37 UTCOSV refresh

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2019-15941?
CVE-2019-15941 is a critical vulnerability published on September 25, 2019. OpenID Connect Issuer in LemonLDAP::NG 2.x through 2.0.5 may allow an attacker to bypass access control rules via a crafted OpenID Connect authorization request. To be vulnerable, there must exist an OIDC Relaying party within the LemonLDAP configuration with weaker access control rules than the…
When was CVE-2019-15941 disclosed?
CVE-2019-15941 was first published in the National Vulnerability Database on September 25, 2019, with the most recent update on May 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-15941 actively exploited?
CVE-2019-15941 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 80.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-15941?
CVE-2019-15941 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2019-15941?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-15941, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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