CVE-2026-123783

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Source
https://cve.org/CVERecord?id=CVE-2026-123783
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-123783.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-123783
Published
2026-11-06T15:00:59Z
Modified
2026-11-07T02:46:55Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Skyvern through 1.0.56 Script Sandbox Bypass via types.CodeType Bytecode
Details

Skyvern through 1.0.56 contains a sandbox bypass vulnerability that allows authenticated users to execute code by reconstructing functions from raw bytecode with types.CodeType. Attackers can deploy scripts that evade the is_safe_script_code AST denylist and import blocked modules such as subprocess or socket to run code in the Skyvern server process.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-184"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123783.json"
}
References

Affected packages

Git / github.com/skyvern-ai/skyvern

Affected ranges

Type
GIT
Repo
https://github.com/skyvern-ai/skyvern
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
0bfb8317bc4b4a5913d1aabcdb73f66b11c538fa
Fixed
31a64c1a4b5dfaf1e76a7164845e10f2d68248dc
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "last_affected": "1.0.56"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "fixed": "31a64c1a4b5dfaf1e76a7164845e10f2d68248dc"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

0.*
0.1.1
0.1.2
v0.*
v0.1.10
v0.1.11
v0.1.12
v0.1.13
v0.1.14
v0.1.15
v0.1.16
v0.1.17
v0.1.18
v0.1.19
v0.1.20
v0.1.21
v0.1.22
v0.1.23
v0.1.24
v0.1.25
v0.1.26
v0.1.27
v0.1.28
v0.1.29
v0.1.3
v0.1.30
v0.1.31
v0.1.32
v0.1.33
v0.1.34
v0.1.35
v0.1.36
v0.1.37
v0.1.38
v0.1.39
v0.1.4
v0.1.40
v0.1.41
v0.1.42
v0.1.43
v0.1.44
v0.1.45
v0.1.46
v0.1.47
v0.1.48
v0.1.49
v0.1.5
v0.1.50
v0.1.51
v0.1.52
v0.1.53
v0.1.54
v0.1.55
v0.1.56
v0.1.57
v0.1.58
v0.1.59
v0.1.6
v0.1.60
v0.1.61
v0.1.62
v0.1.63
v0.1.64
v0.1.65
v0.1.66
v0.1.67
v0.1.68
v0.1.7
v0.1.71
v0.1.73
v0.1.75
v0.1.76
v0.1.77
v0.1.79
v0.1.8
v0.1.80
v0.1.81
v0.1.82
v0.1.83
v0.1.84
v0.1.85
v0.1.9
v0.2.1
v0.2.10
v0.2.11
v0.2.12
v0.2.13
v0.2.14
v0.2.15
v0.2.16
v0.2.17
v0.2.18
v0.2.19
v0.2.2
v0.2.20
v0.2.21
v0.2.22
v0.2.23
v0.2.3
v0.2.4
v0.2.5
v0.2.6
v0.2.7
v0.2.8
v0.2.9
v1.*
v1.0.0
v1.0.1
v1.0.10
v1.0.11
v1.0.12
v1.0.13
v1.0.14
v1.0.15
v1.0.16
v1.0.17
v1.0.18
v1.0.19
v1.0.2
v1.0.20
v1.0.21
v1.0.22
v1.0.23
v1.0.24
v1.0.25
v1.0.26
v1.0.27
v1.0.28
v1.0.29
v1.0.3
v1.0.30
v1.0.31
v1.0.32
v1.0.33
v1.0.34
v1.0.35
v1.0.36
v1.0.37
v1.0.38
v1.0.39
v1.0.4
v1.0.40
v1.0.41
v1.0.42
v1.0.43
v1.0.44
v1.0.45
v1.0.46
v1.0.47
v1.0.48
v1.0.49
v1.0.5
v1.0.50
v1.0.51
v1.0.52
v1.0.53
v1.0.54
v1.0.55
v1.0.56
v1.0.6
v1.0.7
v1.0.8
v1.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-123783.json"