Critical severity · published Mar 14, 2018
CVE-2018-1000132
Mercurial version 4.5 and earlier contains a Incorrect Access Control (CWE-285) vulnerability in Protocol server that can result in Unauthorized data access
9.1
CVSS
2.6%
EPSS
No
On KEV
Description
Mercurial version 4.5 and earlier contains a Incorrect Access Control (CWE-285) vulnerability in Protocol server that can result in Unauthorized data access. This attack appear to be exploitable via network connectivity. This vulnerability appears to have been fixed in 4.5.1.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0; 8.0 · source: NVD
ME
Mercurial · Mercurial
before 4.5.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1000132
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-1000132
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:2276
Mailing List
https://lists.debian.org/debian-lts-announce/2018/03/msg00034.html
Mailing List
https://lists.debian.org/debian-lts-announce/2018/07/msg00005.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
Release Notes
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.5.1_.2F_4.5.2_.282018-03-06.29
More from Debian Linux
10.0
CVE-2025-32433
Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2021-44228
Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints
10.0
CVE-2015-3306
ProFTPD Improper Access Control Vulnerability
9.8
CVE-2026-111497
Out-of-Bounds Write in Google Brotli Decoder