CVE-2026-12243

high Red Hat
CVSS v3 Base Score
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score
0.5%
Exploitation probability in 30 days
Top 61% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Published: June 30, 2026 (9 days ago)
Last Modified: June 30, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in NLTK. An attacker can exploit a path traversal vulnerability by providing specially crafted input to `nltk.data.load()` or `nltk.data.find()`. This allows the attacker to read arbitrary files accessible to the Python process, leading to information disclosure. The vulnerability arises from an incomplete fix that fails to account for percent-encoded traversal sequences.

CWE

CWE-22

Affected Products

Exploit IntelligenceOpenShift LightspeedRed Hat Ansible Automation Platform 2Red Hat OpenShift AI (RHOAI)

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 huntr.com