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CVE-2018-1000132

29
FAUCET Score

CVE-2018-1000132 is an Incorrect Access Control vulnerability in Mercurial versions 4.5 and earlier, allowing unauthorized data access via network connectivity. This critical vulnerability, with a CVSS score of 9.1, has a low attack complexity and can lead to high confidentiality and integrity impacts. While a fix was released in version 4.5.1, there is no public exploit intelligence, Metasploit modules, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.5.1CPE matchmatch criteria
cpe:2.3:a:mercurial:mercurial:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.1CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.65%
Probability of exploitation in next 30 days
EPSS Percentile
84.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0265 is in the 74th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

pippatch availablevia ghsa
Product: mercurialFixed in: 4.5.1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: mercurial-0:2.6.2-10.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mercurial

Vendor Advisories (2)

pipGHSA-4mr4-7vjv-9hm6critical

Mercurial Incorrect Access Control vulnerability

May 13, 2022
redhatCVE-2018-1000132Moderate

mercurial: HTTP server permissions bypass

Mar 8, 2018

References

access.redhat.com / errata/RHSA-2019:2276
lists.debian.org / debian-lts-announce/2018/03/msg00034.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/07/msg00005.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2020/07/msg00032.html
mercurial-scm.org / wiki/WhatsNew
Release NotesVendor Advisory