CVE-2026-77414

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-77414
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77414.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-77414
Aliases
Downstream
CLEANSTART (1)
MINI (3)
Published
2026-08-21T20:51:43Z
Modified
2026-10-21T02:59:49Z
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
JSONata: Arbitrary Code Execution via crafted JSONata expressions
Details

JSONata is a JSON query and transformation language. Prior to 1.8.8 and 2.2.1, the src/jsonata.js environment.lookup function used a bypassable hasOwnProperty check. Crafted expressions could use $hasOwnProperty, $spread, $string, prototype access, and $constructor to reach the object prototype and invoke process.getBuiltinModule with child_process, executing arbitrary code with the privileges of the host process. This issue is fixed in versions 1.8.8 and 2.2.1.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-94"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77414.json"
}
References

Affected packages

Git / github.com/jsonata-js/jsonata

Affected ranges

Type
GIT
Repo
https://github.com/jsonata-js/jsonata
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
18ce8933ae1403c8732a4ef09a6b9f801381164f
Introduced
99717d99a5417c2bb9248eb7e6bde531e3642b4c
Fixed
06fc08cacff16315edddec9632e98c8c7342785b
Fixed
59e25144fc3b7125f6befd71b8a6e14e1fa610d2
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.8.8"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "introduced":  "2.0.0"
                },
                {
                    "fixed":  "2.2.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "59e25144fc3b7125f6befd71b8a6e14e1fa610d2"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v1.8.8",
            "range":  [
                {
                    "fixed":  "18ce8933ae1403c8732a4ef09a6b9f801381164f"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "original_tag":  "v2.2.1",
            "range":  [
                {
                    "fixed":  "06fc08cacff16315edddec9632e98c8c7342785b"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

v1.*
v1.0
v1.0.1
v1.0.10
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.1
v1.1.1
v1.2
v1.2.1
v1.2.2
v1.2.4
v1.2.5
v1.2.6
v1.3
v1.3.1
v1.3.2
v1.3.3
v1.4
v1.4.1
v1.5
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.7.0
v1.8.0
v1.8.1
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.8.6
v1.8.7
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.0.5
v2.0.6
v2.1.0
v2.1.1
v2.2.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77414.json"