Bug 2499902 (CVE-2026-12482)

Summary: CVE-2026-12482 keras: Keras: Arbitrary File Operations via Malicious Tar Archive Processing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in Keras. An attacker can exploit a vulnerability in the tar archive processing to bypass security validations. This allows for the creation of symbolic links (symlinks) outside of the intended directory, which could lead to unauthorized access to or modification of files on the system, or enable an attacker to navigate beyond restricted directories.
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Description OSIDB Bzimport 2026-07-14 06:01:23 UTC 
A vulnerability in keras-team/keras version 3.12.0 allows an attacker to craft a malicious tar archive that bypasses the `filter_safe_tarinfos` validation in `keras/src/utils/file_utils.py`. Specifically, symlink entries are not subjected to the same `is_path_in_dir` validation as regular file entries, allowing symlinks to be created outside the intended extraction directory. This can lead to symlink-based file read, file overwrite, or directory escape attacks. The issue is particularly impactful on Python 3.10 and 3.11, where `filter_safe_tarinfos` is the sole defense against tar path traversal. This vulnerability is distinct from CVE-2025-12060 and other previously reported issues.