CVE-2026-114095 HIGH

CVE-2026-114095: Dulwich before 1.2.9 Infinite Loop DoS via Pack.resolve_object

Vendor Jelmer
Product dulwich
Weakness CWE-835
Published October 21, 2026
Last update October 21, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Dulwich before 1.2.9 contains a denial of service vulnerability in Pack.resolve_object that allows attackers to cause infinite recursion via self-referential OFS_DELTA objects. Attackers can supply a malicious packfile with an OFS_DELTA delta_offset of 0 to exhaust CPU during clone, fetch, or cat-file operations.

Key dates

02Disclosure timeline

October 21, 2026 CVE published
October 21, 2026 Record updated