CVE-2026-16647

MEDIUMNVD 4.14.1—
EchelonGraph scoreHIGH confidence

Score 4.1 from GitHub Security Advisory published 2026-09-02. NVD baseline CVSS 4.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
4.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.1Exploit: None knownExposed: 0

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

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Disable Login Page allows Functionality Bypass. This issue affects Disable Login Page versions: from 0.0.0 to 1.1.4.

CVSS v3
4.1
EG Score
4.1(high)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity41% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Sep 4, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

Disable Login Page - Moderately critical - Access bypass - SA-CONTRIB-2026-111 | Drupal.org

https://www.drupal.org/sa-contrib-2026-111

Vendor Advisories for CVE-2026-16647(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Packagist:https://packages.drupal.org/8(1)
PackageVulnerable rangeFixed inDependents
drupal/disable_login—1.1.4—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× 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. 2026-09-19 10:53 UTCEG score recompute
  2. 2026-09-19 10:53 UTCGHSA enrichment
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-18 08:56 UTCEG score recompute
  5. 2026-09-18 08:56 UTCGHSA enrichment
  6. 2026-09-17 06:59 UTCEG score recompute
  7. 2026-09-17 06:59 UTCGHSA enrichment
  8. 2026-09-16 14:07 UTCEPSS rescore
  9. 2026-09-16 05:14 UTCEPSS rescore
  10. 2026-09-16 05:02 UTCEG score recompute
  11. 2026-09-16 05:02 UTCGHSA enrichment
  12. 2026-09-15 03:05 UTCGHSA enrichment
  13. 2026-09-14 01:08 UTCEG score recompute
  14. 2026-09-14 01:08 UTCGHSA enrichment
  15. 2026-09-13 16:46 UTCEPSS rescore
  16. 2026-09-12 23:11 UTCEG score recompute
  17. 2026-09-12 23:11 UTCGHSA enrichment
  18. 2026-09-12 15:00 UTCEPSS rescore
  19. 2026-09-11 21:14 UTCEG score recompute
  20. 2026-09-11 21:14 UTCGHSA enrichment
  21. 2026-09-11 14:52 UTCEPSS rescore
  22. 2026-09-11 09:36 UTCEPSS rescore
  23. 2026-09-10 19:16 UTCEG score recompute
  24. 2026-09-10 19:16 UTCGHSA enrichment
  25. 2026-09-10 09:34 UTCEPSS rescore
Show 21 more
  1. 2026-09-09 17:19 UTCEG score recompute
  2. 2026-09-09 17:19 UTCGHSA enrichment
  3. 2026-09-08 22:00 UTCEPSS rescore
  4. 2026-09-08 15:22 UTCEG score recompute
  5. 2026-09-08 15:22 UTCGHSA enrichment
  6. 2026-09-08 02:24 UTCEG score recompute
  7. 2026-09-08 02:23 UTCGHSA enrichment
  8. 2026-09-07 16:01 UTCEPSS rescore
  9. 2026-09-07 00:26 UTCEG score recompute
  10. 2026-09-07 00:26 UTCGHSA enrichment
  11. 2026-09-06 13:47 UTCEPSS rescore
  12. 2026-09-05 22:25 UTCEG score recompute
  13. 2026-09-05 22:25 UTCGHSA enrichment
  14. 2026-09-04 20:27 UTCGHSA enrichment
  15. 2026-09-04 20:05 UTCEG score recompute▲ 4.10
  16. 2026-09-04 20:05 UTCGHSA enrichment
  17. 2026-09-04 20:04 UTCMITRE cvelistV5CVSS v3 → 4.1 · severity → MEDIUM
  18. 2026-09-04 05:06 UTCEPSS rescore
  19. 2026-09-02 13:25 UTCNVD update
  20. 2026-09-02 13:02 UTCEG score recompute
  21. 2026-09-02 12:58 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-16647?
CVE-2026-16647 is a medium vulnerability published on September 2, 2026. Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Disable Login Page allows Functionality Bypass. This issue affects Disable Login Page versions: from 0.0.0 to 1.1.4.
When was CVE-2026-16647 disclosed?
CVE-2026-16647 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16647 actively exploited?
CVE-2026-16647 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 80.7% of all scored CVEs.
What is the CVSS score of CVE-2026-16647?
CVE-2026-16647 has a CVSS v3 base score of 4.1 (NVD).
How do I remediate CVE-2026-16647?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16647, 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.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-16647

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