CVE-2021-3842

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2021-3842
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3842.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-3842
Aliases
Downstream
Published
2022-01-04T15:15:07.833Z
Modified
2026-04-11T12:36:58.917406Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

nltk is vulnerable to Inefficient Regular Expression Complexity

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "10.0"
                }
            ],
            "cpe": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "11.0"
                }
            ],
            "cpe": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "9.0"
                }
            ],
            "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "35"
                }
            ],
            "cpe": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*"
        }
    ]
}
References

Affected packages

Git / github.com/nltk/nltk

Affected ranges

Type
GIT
Repo
https://github.com/nltk/nltk
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
4862b094ae4a9aa04396e06335ae52f7920e48c7
Fixed
2a50a3edc9d35f57ae42a921c621edc160877f4d
Database specific 
{
    "source": [
        "CPE_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.6.6"
        }
    ],
    "cpe": "cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:*"
}

Affected versions

2.*
2.0.1rc1
2.0.1rc2
2.0.1rc3
2.0.1rc4
3.*
3.0.0b1
3.0.2
3.0.3
3.0.4
3.0.5
3.0a4
3.1
3.2
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.3
3.4
3.4.1
3.4.3
3.4.4
3.5
3.5b1
3.6
3.6.1
3.6.2
3.6.5

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3842.json"