CVE-2026-56700

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Source
https://cve.org/CVERecord?id=CVE-2026-56700
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56700.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-56700
Aliases
Published
2026-06-30T22:08:40.943Z
Modified
2026-07-15T01:49:17.229627728Z
Severity
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Grav - Multiple Remote Code Execution Vulnerabilities via Unsafe Unserialize and Command Injection
Details

Grav CMS before 2.0.0-beta.2 contains multiple code-execution vulnerabilities. Three unsafe unserialize() calls - in Scheduler\JobQueue, Framework\Cache\Adapter\FileCache, and Session - deserialize untrusted data without restricting allowed classes, enabling PHP object injection and, via a gadget chain, arbitrary code execution where an attacker controls the serialized input. Additionally, InstallCommand's git clone operation passes the branch, url, and path parameters into a shell command without escaping, allowing OS command injection via plugin/theme installation (which requires admin access). A Twig security blocklist bypass (server-side template injection) is also present. The issues are fixed in 2.0.0-beta.2.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56700.json",
    "cwe_ids": [
        "CWE-502",
        "CWE-78"
    ],
    "cna_assigner": "VulnCheck"
}
References

Affected packages

Git / github.com/getgrav/grav

Affected ranges

Type
GIT
Repo
https://github.com/getgrav/grav
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3077b04b220318883ed34b6ae2a6cd0f25dba92e
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.0.0-beta.2"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

0.*
0.8.0
0.9.0
0.9.10
0.9.11
0.9.12
0.9.13
0.9.14
0.9.15
0.9.16
0.9.17
0.9.18
0.9.19
0.9.2
0.9.3
0.9.4
0.9.5
0.9.6
0.9.7
0.9.8
0.9.9
1.*
1.1.0-beta.1
1.1.0-beta.2
1.1.0-beta.3
1.1.0-beta.4
1.1.0-beta.5
1.1.0-rc.1
1.1.0-rc.2
1.1.0-rc.3
1.1.9-rc.1
1.1.9-rc.2
1.1.9-rc.3
1.2.0-rc.1
1.2.0-rc.2
1.2.0-rc.3
1.3.0-rc.1
1.3.0-rc.3
1.3.0-rc.4
1.3.0-rc.5
1.5.0-beta.1
1.5.0-beta.2
1.5.0-rc.1
1.6.0-beta.1
1.6.0-beta.2
1.6.0-beta.5
1.6.0-beta.6
1.6.0-beta.7
1.6.0-beta.8
1.6.0-rc.1
1.6.0-rc.2
1.6.0-rc.3
1.6.0-rc.4
1.7.0-beta.1
1.7.0-beta.10
1.7.0-beta.2
1.7.0-beta.3
1.7.0-beta.4
1.7.0-beta.5
1.7.0-beta.6
1.7.0-beta.7
1.7.0-beta.8
1.7.0-beta.9
1.7.0-rc.1
1.7.0-rc.10
1.7.0-rc.12
1.7.0-rc.13
1.7.0-rc.14
1.7.0-rc.15
1.7.0-rc.17
1.7.0-rc.18
1.7.0-rc.19
1.7.0-rc.2
1.7.0-rc.20
1.7.0-rc.3
1.7.0-rc.4
1.7.0-rc.5
1.7.0-rc.6
1.7.0-rc.7
1.7.0-rc.8
1.7.0-rc.9
1.8.0-beta.1
1.8.0-beta.10
1.8.0-beta.11
1.8.0-beta.12
1.8.0-beta.13
1.8.0-beta.14
1.8.0-beta.15
1.8.0-beta.16
1.8.0-beta.17
1.8.0-beta.18
1.8.0-beta.19
1.8.0-beta.2
1.8.0-beta.20
1.8.0-beta.21
1.8.0-beta.22
1.8.0-beta.23
1.8.0-beta.24
1.8.0-beta.25
1.8.0-beta.26
1.8.0-beta.27
1.8.0-beta.28
1.8.0-beta.29
1.8.0-beta.3
1.8.0-beta.4
1.8.0-beta.5
1.8.0-beta.6
1.8.0-beta.7
1.8.0-beta.8
1.8.0-beta.9
2.*
2.0.0-beta.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56700.json"