CVE-2019-3902
MEDIUM5.9EPSS 0.54%mercurial - security update
Published: 2/15/2022Modified: 11/19/2025
Also known as:ALPINE-CVE-2019-3902DEBIAN-CVE-2019-3902
Description
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.
Affected packages (5)
- Alpine/mercurialfrom 0, < 4.9-r0
- Debian/mercurialfrom 0, < 4.9-1
- Debian/mercurialfrom 0, < 3.1.2-2+deb8u7
- PyPI/mercurialfrom 0, < 4.9
- PyPI/mercurialfrom 0, < 4.9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
References (10)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2019-3902
- ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2019-3902
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2019-3902
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3902
- WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/mercurial/PYSEC-2019-188.yaml
- WEBhttps://lists.debian.org/debian-lts-announce/2019/04/msg00024.html
- WEBhttps://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
- WEBhttps://usn.ubuntu.com/4086-1
- WEBhttps://usn.ubuntu.com/4086-1/
- WEBhttps://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.9_.282019-02-01.29