CVE-2026-128021

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Source
https://cve.org/CVERecord?id=CVE-2026-128021
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-128021.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-128021
Aliases
  • GHSA-4gfw-9v29-gp9h
Published
2026-11-13T09:34:07Z
Modified
2026-11-14T02:47:32Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
FrankenPHP before 1.13.2 Information Disclosure via libxml Error State in Worker Mode
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-200"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/128xxx/CVE-2026-128021.json"
}
References

Affected packages

Git / github.com/php/frankenphp

Affected ranges

Type
GIT
Repo
https://github.com/php/frankenphp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0ad8a403a5c2eb13aacab92fffa6abc397157d10
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.13.2"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        }
    ]
}

Affected versions

caddy/v1.*
caddy/v1.0.0
caddy/v1.0.0-beta.1
caddy/v1.0.0-beta.2
caddy/v1.0.0-rc.2
caddy/v1.0.0-rc.3
caddy/v1.0.0-rc.4
caddy/v1.0.1
caddy/v1.0.2
caddy/v1.0.3
caddy/v1.1.0
caddy/v1.1.1
caddy/v1.1.2
caddy/v1.1.3
caddy/v1.1.4
caddy/v1.1.5
caddy/v1.10.0
caddy/v1.10.1
caddy/v1.11.0
caddy/v1.11.1
caddy/v1.11.2
caddy/v1.11.3
caddy/v1.12.0
caddy/v1.12.1
caddy/v1.12.2
caddy/v1.12.3
caddy/v1.12.4
caddy/v1.12.5
caddy/v1.12.6
caddy/v1.12.7
caddy/v1.13.0
caddy/v1.13.1
caddy/v1.2.0
caddy/v1.2.1
caddy/v1.2.2
caddy/v1.2.3
caddy/v1.2.4
caddy/v1.2.5
caddy/v1.3.0
caddy/v1.3.1
caddy/v1.3.2
caddy/v1.3.3
caddy/v1.3.4
caddy/v1.3.5
caddy/v1.3.6
caddy/v1.4.0
caddy/v1.4.1
caddy/v1.4.2
caddy/v1.4.3
caddy/v1.4.4
caddy/v1.5.0
caddy/v1.6.0
caddy/v1.6.1
caddy/v1.6.2
caddy/v1.7.0
caddy/v1.8.0
caddy/v1.9.0
caddy/v1.9.1
v1.*
v1.0.0
v1.0.0-beta.1
v1.0.0-beta.2
v1.0.0-rc.2
v1.0.0-rc.3
v1.0.0-rc.4
v1.0.1
v1.0.2
v1.0.3
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.1.4
v1.1.5
v1.10.0
v1.10.1
v1.11.0
v1.11.1
v1.11.2
v1.11.3
v1.12.0
v1.12.1
v1.12.2
v1.12.3
v1.12.4
v1.12.5
v1.12.6
v1.12.7
v1.13.0
v1.13.1
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.2.5
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.3.5
v1.3.6
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.5.0
v1.6.0
v1.6.1
v1.6.2
v1.7.0
v1.8.0
v1.9.0
v1.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-128021.json"