CVE-2023-5256: In certain scenarios, Drupal's JSON:API module will output error backtraces. With some configurations, this may cause se

critical Affects drupal/core. Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

In certain scenarios, Drupal's JSON:API module will output error backtraces. With some configurations, this may cause se

Package
drupal/core Composer
Affected versions
>=8.7.0 <9.5.11 or >=10.0 <10.0.11 or >= 10.1 <10.1.4 or >=8.7.0 and <9.5.11 or >=10.0.0 and <10.0.11 or >=10.1.0 and <10.1.4
Fixed in
9.5.11, 10.0.11, 10.1.4
Severity
critical
Exploitation
not on CISA KEV · EPSS 1% (58.1th percentile)
Published
2023-09-20
Source
osv.dev

References

CWE-200
NVD recorddrupal/core advisories

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# one-time install
pip install phpwarden

# then
phpwarden deps composer.lock

Or keep it checked automatically: GitHub Action · pre-commit hook · GitLab CI · Laravel artisan command

Install docs   How findings are ranked

Related advisories