DEBIAN-CVE-2026-0848

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Source
https://security-tracker.debian.org/tracker/CVE-2026-0848
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0848.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-0848
Upstream
  • CVE-2026-0848
Published
2026-03-05T21:16:14.263Z
Modified
2026-04-28T20:31:04.682261Z
Severity
  • 10.0 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

NLTK versions <=3.9.2 are vulnerable to arbitrary code execution due to improper input validation in the StanfordSegmenter module. The module dynamically loads external Java .jar files without verification or sandboxing. An attacker can supply or replace the JAR file, enabling the execution of arbitrary Java bytecode at import time. This vulnerability can be exploited through methods such as model poisoning, MITM attacks, or dependency poisoning, leading to remote code execution. The issue arises from the direct execution of the JAR file via subprocess with unvalidated classpath input, allowing malicious classes to execute when loaded by the JVM.

References

Affected packages

Debian:11 / nltk

Package

Name
nltk
Purl
pkg:deb/debian/nltk?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.5-1
3.6.5-1
3.6.7-1
3.7-1
3.8-1
3.8.1-1
3.9.1-1
3.9.1-2
3.9.2-1
3.9.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0848.json"

Debian:12 / nltk

Package

Name
nltk
Purl
pkg:deb/debian/nltk?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.8-1
3.8.1-1
3.9.1-1
3.9.1-2
3.9.2-1
3.9.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0848.json"

Debian:13 / nltk

Package

Name
nltk
Purl
pkg:deb/debian/nltk?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.9.1-2
3.9.2-1
3.9.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0848.json"

Debian:14 / nltk

Package

Name
nltk
Purl
pkg:deb/debian/nltk?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.9.3-1

Affected versions

3.*
3.9.1-2
3.9.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0848.json"