Read the docs
TI-2017-14452 Aliases CVE-2017-1000115GHSA-hvr9-wr9p-grgr

Mercurial prior to version 4.3 is vulnerable to a missing symlink check that can…

Priority MEDIUM 41CWE-59Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 6 fixed, 1 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat.

Summary

Mercurial prior to version 4.3 is vulnerable to a missing symlink check that can malicious repositories to modify files outside the repository

Why it matters now

EPSS 0.04948 92nd percentileScored 2026-11-07
Fix Partial mercurial (PyPI): 4.3.1Red Hat: 1 advisoryRed Hat: 6 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—mercurial (PyPI)before 4.3.14.3.1Patch availableGHSA-hvr9-wr9p-grgr
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • mercurial (PyPI) Vendor— Affected before 4.3.1 Fixed in 4.3.1 Patch available GHSA-hvr9-wr9p-grgr

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:mercurial:mercurial:*:*:*:*:*:*:*:*before 4.3VulnerableMercurial
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
  • cpe:2.3:a:mercurial:mercurial:*:*:*:*:*:*:*:* Versions before 4.3 Vulnerable ·Mercurial
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

  • Fix · GHSA-hvr9-wr9p-grgr mercurial (PyPI) Fixed in 4.3.1 Advisory →

Red Hat 1 advisory

  • RHSA-2017:2489 Released 2017-08-17 · Red Hat rating Important
    mercurial security update
    • Red Hat Enterprise Linux Client Optional (v. 7) emacs-mercurial-2.6.2-8.el7_4, emacs-mercurial-el-2.6.2-8.el7_4, mercurial-2.6.2-8.el7_4 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) emacs-mercurial-2.6.2-8.el7_4, emacs-mercurial-el-2.6.2-8.el7_4, mercurial-2.6.2-8.el7_4 +1
    • Red Hat Enterprise Linux Server (v. 7) mercurial-2.6.2-8.el7_4
    • Red Hat Enterprise Linux Server Optional (v. 7) emacs-mercurial-2.6.2-8.el7_4, emacs-mercurial-el-2.6.2-8.el7_4, mercurial-hgk-2.6.2-8.el7_4
    • Red Hat Enterprise Linux Workstation (v. 7) mercurial-2.6.2-8.el7_4
    • Red Hat Enterprise Linux Workstation Optional (v. 7) emacs-mercurial-2.6.2-8.el7_4, emacs-mercurial-el-2.6.2-8.el7_4, mercurial-hgk-2.6.2-8.el7_4

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:2489
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:2489
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:2489
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:2489
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:2489
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:2489

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-1000115
  2. 2026-10-03 Alias added: GHSA-hvr9-wr9p-grgr

References

Advisory 5

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences