CVE-2026-128021
FrankenPHP before 1.13.2 Information Disclosure via libxml Error State in Worker Mode
Published Nov 13, 2026
CVSS 4.0 · 6.3 Medium
EPSS n/a
KEV · Not listed
Description
FrankenPHP before 1.13.2 contains an information disclosure vulnerability that allows later clients to read earlier clients' libxml errors because worker mode never resets LIBXML(error_list) between requests. Attackers sending requests to the same worker thread can call libxml_get_errors() or libxml_get_last_error() to obtain other clients' parsed-document fragments and server filesystem paths.
Analysis
Affected Products
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CVE record
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NVD configurations
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Red Hat packages
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OpenCVE enrichment
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| php | frankenphp | unaffected |
|
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No data available yet.
Remediation
Tracking
Advisories
Metrics
Attack Vector Network
Attack Complexity High
Privileges Required None
Attack Requirements Present
User Interaction None
Vulnerable System Confidentiality Impact Low
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact None
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
Attack Vector Network
Attack Complexity High
Privileges Required None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
User Interaction None
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
No EPSS score available.
Key SSVC decision points have not yet been added.
References
History
Nov 13, 2026 9:45 AM
Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated
View changes
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FrankenPHP before 1.13.2 contains an information disclosure vulnerability that allows later clients to read earlier clients' libxml errors because worker mode never resets LIBXML(error_list) between requests. Attackers sending requests to the same worker thread can call libxml_get_errors() or libxml_get_last_error() to obtain other clients' parsed-document fragments and server filesystem paths. | |
| Title | FrankenPHP before 1.13.2 Information Disclosure via libxml Error State in Worker Mode | |
| First Time appeared |
Php
Php frankenphp |
|
| Weaknesses | CWE-200 | |
| CPEs | cpe:2.3:a:php:frankenphp:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Php
Php frankenphp |
|
| References |
| |
| Metrics |
cvssV3_1
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Subscriptions
Weaknesses
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CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
Sources
Vulnrichment
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NVD
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Red Hat
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OpenCVE enrichment
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