CVE-2026-114097: dulwich 0.23.1 to before 1.2.8

Affected technology

dulwich · 0.23.1 to before 1.2.8
jelmer

Description’s affected range: before 1.2.8

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Local · No privileges required · Passive user interaction

What an attacker can do

Attackers can craft a repository where an ancestor commit's symlink redirects a descendant commit's file writes during filter_branch, enabling code execution by writing into .git/hooks. Vendor/CNA’s CVSS 4.0 assessment (base score 7.3/10) rates confidentiality, integrity and availability impact as high.