5.9

CVE-2026-55803: drupal

CVSS: 5.9v3.1MediumAnalyzed
Published 10-07-2026Last modified 13-07-2026
Open JSON

Vulnerability summary

CVE-2026-55803 is a medium (CVSS 5.9) vulnerability in drupal. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 27.4% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.35%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 10-07-2026
    PublishedVulnerability first disclosed.
  2. 13-07-2026
    Last modifiedVulnerability information updated.

Description

Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal core allows Object Injection. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.35%

Chance of exploitation in the next 30 days

Percentile

27%

Versus all other CVEs

30-day change

0.00 pp

From 0.35% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.35%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Drupal2 products
  • drupal< 10.5.12 | ≥ 10.6.0, < 10.6.11 | ≥ 11.0.0, < 11.2.14 | ≥ 11.3.0, < 11.3.12
  • drupal core≥ 0.0.0, < 10.5.12 | ≥ 10.6.0, < 10.6.11 | ≥ 11.2.0, < 11.2.14 | ≥ 11.3.0, < 11.3.12 | ≥ 0.0.0, < 11.0.* | ≥ 0.0.0, < 11.1.*

1 vendor · 2 products

References

1 links