Path Traversal in Mercurial
CVE-2019-3902
A flaw was found in Mercurial before 4.9. It was possible to use symlinks and subrepositories to defeat Mercurial's path-checking logic and write files outside a repository.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.014 (71.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Mercurial
- The Mercurial Project — versions before 4.9
- Debian Linux — versions 8.0
- Red Hat Enterprise Linux — versions 7.0
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2019/04/msg00024.html (mailing-list, Third Party Advisory)
- www.mercurial-scm.org/wiki/WhatsNew (Third Party Advisory)
- usn.ubuntu.com/4086-1/ (vendor-advisory)
- lists.debian.org/debian-lts-announce/2020/07/msg00032.html (mailing-list)
Frequently asked questions
- What is CVE-2019-3902?
- CVE-2019-3902 is a medium-severity vulnerability in Mercurial, classified under Path Traversal. CVSS score: 5.1/10. Published 2019-04-22.
- How severe is CVE-2019-3902?
- Medium severity. CVSS v3 base score is 5.1 out of 10.