CVE-2026-15916: drupal drupal core Missing Authorization
CVSS: 4.2v3.1MediumAwaiting analysis
Published 25-08-2026Last modified 26-08-2026
Vulnerability summary
CVE-2026-15916 is a medium (CVSS 4.2) Missing Authorization vulnerability in drupal drupal core. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.8% of scored vulnerabilities.
CVSS score
4.2/10
010
Medium · v3.1 (CVE.org)EPSS score
0.12%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 25-08-2026PublishedVulnerability first disclosed.
- 26-08-2026Last modifiedVulnerability information updated.
Description
Missing Authorization vulnerability in Drupal Drupal core allows Forceful Browsing. This issue affects Drupal core versions: from 0.0.0 to 10.6.13, from 11.3.0 to 11.3.14, from 11.4.0 to 11.4.4, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*, from 0.0.0 to 11.2.*.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 4.2Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:NSourcesAll 2 agree
- NVDNIST4.2MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.12%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
0.00 pp
From 0.12% on 20-09-2026
20-09-202620-10-2026
EPSS score0.12%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Drupal1 product
- drupal core≥ 0.0.0, < 10.6.13 | ≥ 11.3.0, < 11.3.14 | ≥ 11.4.0, < 11.4.4 | ≥ 0.0.0, < 11.0.* | ≥ 0.0.0, < 11.1.* | ≥ 0.0.0, < 11.2.*
1 vendor · 1 product