What’s Vulnerable › Vulnerabilities

CVE-2018-1000132

• Severity: critical (CVSS 9.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-03-14 · updated 2026-06-17
• Weakness: CWE-732

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.

Affected products

• Debian Linux: 7.0, 8.0
• mercurial: before 4.5.1 — fixed in 4.5.1

How to fix

Upgrade to a fixed version: mercurial 4.5.1. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/errata/RHSA-2019:2276
• https://lists.debian.org/debian-lts-announce/2018/03/msg00034.html
• https://lists.debian.org/debian-lts-announce/2018/07/msg00005.html
• https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
• https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.5.1_.2F_4.5.2_.282018-03-06.29
• https://access.redhat.com/errata/RHSA-2019:2276
• https://lists.debian.org/debian-lts-announce/2018/03/msg00034.html
• https://lists.debian.org/debian-lts-announce/2018/07/msg00005.html
• https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
• https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.5.1_.2F_4.5.2_.282018-03-06.29

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