CVE-2026-114095

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.

CVSS 4.0

7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 23% of CVEs (scores of 2026-10-25)

CWE

CWE-835

Published

2026-10-21

Modified

2026-10-21

Record from

the NVD, synced 2026-10-22

Packages (OSV)

References

• https://github.com/jelmer/dulwich/security/advisories/GHSA-35mr-4567-66vg
• https://www.vulncheck.com/advisories/dulwich-before-1.2.9-infinite-loop-dos-via-pack-resolve-object

Check your stackJSON