CVE-2025-48934

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Source
https://cve.org/CVERecord?id=CVE-2025-48934
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-48934.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-48934
Aliases
Downstream
Published
2025-06-04T19:21:17Z
Modified
2026-10-22T10:34:16Z
Severity
  • 5.5 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P CVSS Calculator
Summary
Deno.env.toObject() ignores the variables listed in --deny-env and returns all environment variables
Details

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to versions 2.1.13 and 2.2.13, the Deno.env.toObject method ignores any variables listed in the --deny-env option of the deno run command. When looking at the documentation of the --deny-env option this might lead to a false impression that variables listed in the option are impossible to read. Software relying on the combination of both flags to allow access to most environment variables except a few sensitive ones will be vulnerable to malicious code trying to steal secrets using the Deno.env.toObject() method. Versions 2.1.13 and 2.2.13 contains a patch.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-201"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48934.json"
}
References

Affected packages

Git / github.com/denoland/deno

Affected ranges

Type
GIT
Repo
https://github.com/denoland/deno
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5b85bdaf88e36a1fcae3e442d96f026e4e1f9b92
Introduced
29688168631edb677a444ba3cd02b2be21304a1f
Fixed
0117f27aef98e1bf9a8689fe5ab6b03b5a1453f7
Fixed
2959e083912420988066a001c2b2d6732a1b562f
Fixed
946ccda1aa19a00c478a5e6826b75053b050d753
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "2.1.13"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "2.2.0"
                },
                {
                    "fixed": "2.2.13"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "2959e083912420988066a001c2b2d6732a1b562f"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "946ccda1aa19a00c478a5e6826b75053b050d753"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

std/0.*
std/0.34.0
std/0.35.0
std/0.36.0
std/0.37.0
std/0.38.0
std/0.39.0
std/0.40.0
std/0.41.0
std/0.42.0
std/0.50.0
std/0.51.0
std/0.52.0
std/0.53.0
std/0.54.0
std/0.55.0
std/0.56.0
std/0.57.0
std/0.58.0
std/0.59.0
std/0.60.0
std/0.61.0
std/0.62.0
std/0.63.0
std/0.64.0
std/0.65.0
std/0.66.0
std/0.67.0
std/0.68.0
std/0.69.0
std/0.70.0
std/0.71.0
std/0.72.0
std/0.73.0
std/0.74.0
std/0.75.0
std/0.76.0
std/0.77.0
std/0.78.0
std/0.79.0
std/0.80.0
std/0.81.0
std/0.82.0
std/0.83.0
std/0.84.0
std/0.85.0
v0.*
v0.0.1
v0.0.3
v0.1.0
v0.1.1
v0.1.10
v0.1.11
v0.1.12
v0.1.2
v0.1.3
v0.1.4
v0.1.5
v0.1.6
v0.1.7
v0.1.8
v0.1.9
v0.10.0
v0.11.0
v0.12.0
v0.13.0
v0.14.0
v0.15.0
v0.16.0
v0.17.0
v0.18.0
v0.19.0
v0.2.0
v0.2.1
v0.2.10
v0.2.11
v0.2.2
v0.2.3
v0.2.4
v0.2.5
v0.2.6
v0.2.7
v0.2.8
v0.2.9
v0.20.0
v0.21.0
v0.22.0
v0.23.0
v0.24.0
v0.25.0
v0.26.0
v0.27.0
v0.28.0
v0.28.1
v0.29.0
v0.3.0
v0.3.1
v0.3.10
v0.3.11
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.3.9
v0.30.0
v0.30.1
v0.31.0
v0.32.0
v0.33.0
v0.34.0
v0.35.0
v0.36.0
v0.37.0
v0.37.1
v0.38.0
v0.39.0
v0.4.0
v0.40.0
v0.41.0
v0.42.0
v0.5.0
v0.6.0
v0.7.0
v0.8.0
v0.9.0
v1.*
v1.0.0
v1.0.0-rc1
v1.0.0-rc2
v1.0.0-rc3
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.10.0
v1.10.1
v1.11.0
v1.11.1
v1.11.2
v1.12.0
v1.12.1
v1.12.2
v1.13.0
v1.13.1
v1.13.2
v1.14.0
v1.14.1
v1.14.2
v1.15.0
v1.15.1
v1.15.2
v1.15.3
v1.16.0
v1.16.1
v1.16.2
v1.17.0
v1.18.0
v1.19.0
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.20.0
v1.20.1
v1.21.0
v1.22.0
v1.23.0
v1.24.0
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.30.0
v1.31.0
v1.32.0
v1.33.0
v1.34.0
v1.35.0
v1.36.0
v1.37.0
v1.38.0
v1.39.0
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.40.0
v1.41.0
v1.42.0
v1.43.0
v1.43.1
v1.44.0
v1.45.0
v1.46.0
v1.5.0
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.7.0
v1.7.1
v1.7.2
v1.7.3
v1.7.4
v1.8.0
v1.8.1
v1.8.2
v1.9.0
v1.9.1
v1.9.2
v2.*
v2.0.0
v2.1.0
v2.1.1
v2.1.10
v2.1.11
v2.1.12
v2.1.2
v2.1.3
v2.1.4
v2.1.5
v2.1.6
v2.1.7
v2.1.8
v2.1.9
v2.2.0
v2.2.1
v2.2.10
v2.2.11
v2.2.12
v2.2.2
v2.2.3
v2.2.4
v2.2.5
v2.2.6
v2.2.7
v2.2.8
v2.2.9

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-48934.json"