CVE-2026-42563: falha de alta gravidade em jelmer dulwich
Dulwich Vulnerable to Command Injection via Merge Driver Path
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.7epss 0.6%
Dulwich is a pure-Python implementation of the Git file formats and protocols. Starting in version 0.24.0 and prior to version 1.2.5, Dulwich's `ProcessMergeDriver` substitutes the file path (from the git tree, controllable by an attacker via a malicious branch) into the merge driver command via the `%P` placeholder and executes it with `subprocess.run(..., shell=True)`. An attacker who can cause a victim to merge an untrusted branch can achieve arbitrary command execution by crafting malicious file paths. Version 1.2.5 fixes the issue.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Produtos afetados
jelmer · dulwichCVEs relacionadas — jelmer dulwich
No mesmo produto, das mais perigosas para as menos.
CVE-2026-114094HIGHDulwich before 1.2.9 Arbitrary File Write via DOS drive letter pathsEPSS 0.9%CVE-2026-42305HIGHDulwich has an arbitrary file write via NTFS-hostile tree entries on WindowsEPSS 0.6%CVE-2026-52726HIGHDulwich's submodule path traversal in porcelain.submodule_update / porcelain.clone(recurse_submodules=True) yields RCE via attacker-dropped .git/hooks payloadEPSS 0.4%CVE-2026-122299HIGHDulwich before 1.2.20 Commit Parser Tree Header MisinterpretationEPSS 0.3%CVE-2026-114095HIGHDulwich before 1.2.9 Infinite Loop DoS via Pack.resolve_objectEPSS 0.3%CVE-2026-47734MEDIUMDulwich has unbounded memory allocation in receive-pack from crafted thin packsEPSS 0.2%