What is CVE-2016-3105?

CVE-2016-3105 is a high-severity vulnerability in Mercurial, classified under Improper Access Control. CVSS score: 8.8/10. Published 2016-05-09.

How severe is CVE-2016-3105?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Mercurial

CVE-2016-3105

The convert extension in Mercurial before 3.8 might allow context-dependent attackers to execute arbitrary code via a crafted git repository name.

Published 2016-05-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.027 (85.1th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Mercurial
Debian Linux — versions 8.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

security.gentoo.org/glsa/201612-19 (vendor-advisory)
www.securityfocus.com/bid/90536 (vdb-entry)
selenic.com/hg/rev/a56296f55a5e
lists.opensuse.org/opensuse-updates/2016-05/msg00082.html (vendor-advisory)
www.slackware.com/security/viewer.php (vendor-advisory)
www.mercurial-scm.org/wiki/WhatsNew (Vendor Advisory)
www.debian.org/security/2016/dsa-3570 (vendor-advisory)

Frequently asked questions

What is CVE-2016-3105?: CVE-2016-3105 is a high-severity vulnerability in Mercurial, classified under Improper Access Control. CVSS score: 8.8/10. Published 2016-05-09.
How severe is CVE-2016-3105?: High severity. CVSS v3 base score is 8.8 out of 10.