CVE-2026-23493Public exploitNetwork attack vector

Sensitive-data exposure via overbroad HTTP error logging

Published Jan 15, 2026 · Updated Jan 15, 2026

Sensitive-data exposure in Pimcore 11.5.13 and earlier and 12.0.0-RC1 through 12.3.0 allows remote authenticated users to read secrets. ResponseExceptionListener writes complete request cookie and server-variable arrays into http_error_log records, and the backend detail view renders those values. Access to the backend HTTP Errors view is required; exposed values include session cookies, database credentials, and environment configuration.

CVSS severity8.6
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Sensitive-data exposure in Pimcore 11.5.13 and earlier and 12.0.0-RC1 through 12.3.0 allows remote authenticated users to read secrets. ResponseExceptionListener writes complete request cookie and server-variable arrays into http_error_log records, and the backend detail view renders those values. Access to the backend HTTP Errors view is required; exposed values include session cookies, database credentials, and environment configuration.

The record

CVE
CVE-2026-23493
Published
Jan 15, 2026
Updated
Jan 15, 2026
Vendor
Pimcore
Product
Pimcore
Classifications
CWE-532, T1552.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 11.5.14
  2. Affected versionversion=>= 12.0.0-RC1, < 12.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Pimcore · Pimcoreversion=< 11.5.14; version=>= 12.0.0-RC1, < 12.3.1

Published CVSS scores

8.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-532Insertion of Sensitive Information into Log File
T1552.001Unsecured Credentials Credentials In Files

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo