CVE-2026-55878

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Source
https://cve.org/CVERecord?id=CVE-2026-55878
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55878.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-55878
Aliases
Published
2026-07-08T21:30:33.816Z
Modified
2026-07-15T01:48:56.589710334Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Symfony: Path Traversal in symfony/ux-toolkit Allows Arbitrary File Write and Read via Crafted Recipe Manifest
Details

Symfony UX is a JavaScript ecosystem for Symfony. From 2.32.0 before 2.36.1 and from 3.0.0 before 3.2.0, the ux:install console command installs files from a recipe kit by copying paths listed in a copy-files map, and because Path::isRelative() accepts paths like ../../../etc, a crafted or compromised kit can write attacker-controlled content to arbitrary locations or read local files outside the recipe directory. This issue is fixed in versions 2.36.1 and 3.2.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55878.json"
}
References

Affected packages

Git / github.com/symfony/ux

Affected ranges

Type
GIT
Repo
https://github.com/symfony/ux
Events
Introduced
b9647de63d27b8790fd110ec5b8c5348035cc43d
Fixed
dfd2ce941ec3e92af36427685cfb4e900ea9244c
Introduced
3cef8e0d9557bbde60c3f1bfd2cbb1004af7fc9a
Fixed
721417c64bbc85022c56d1e3fb7f66874a38cef2
Fixed
7b4ddf3764bf269a1b5fde5bf03c4bce568694e4
Database specific 
{
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "2.32.0"
        },
        {
            "fixed": "2.36.1"
        },
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "3.2.0"
        }
    ]
}

Affected versions

v2.*
v2.32.0
v2.33.0
v2.34.0
v2.35.0
v2.36.0
v3.*
v3.0.0
v3.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55878.json"