CVE-2026-82416

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Source
https://cve.org/CVERecord?id=CVE-2026-82416
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82416.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-82416
Aliases
  • GHSA-v3ph-cgqh-r8p5
Published
2026-10-13T16:20:53Z
Modified
2026-10-14T10:30:42Z
Severity
  • 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L CVSS Calculator
Summary
FrankenPHP: Cross-request PHP session ID leak in worker mode when the session extension is a shared module
Details

FrankenPHP is a modern application server for PHP. Prior to 1.12.5, FrankenPHP worker mode can retain PHP session state between requests when the session extension is loaded as a shared module and is unavailable through HAVE_PHP_SESSION at compile time. In this build configuration, frankenphp_reset_session_state() is compiled out, PS(id) can survive a request boundary, and a subsequent session_start() can ignore the new request's cookie because an identifier is already present. Under concurrent requests, session_id() can therefore return another client's identifier or a stale identifier from a previous request on the same worker thread, causing cross-user session exposure, possible session hijacking, and intermittent logout behavior. Builds with the session extension statically linked, including the official static binaries and Docker images, are not affected. This issue is fixed in version 1.12.5.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-362",
        "CWE-488"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82416.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
e41b848eb9f7517088a77f2836cee68da1be234b
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.12.5"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

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/v1.2.0
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
v1.2.0
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-2026-82416.json"