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TI-2017-06870 Aliases CVE-2017-9462GHSA-ghjx-3jg5-h6r2

In Mercurial before 4.1.3, "hg serve --stdio" allows remote authenticated users to launch…

Priority MEDIUM 58CWE-732Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat.

Summary

In Mercurial before 4.1.3, "hg serve --stdio" allows remote authenticated users to launch the Python debugger, and consequently execute arbitrary code, by using --debugger as a repository name.

Why it matters now

EPSS 0.21685 97th percentileScored 2026-11-07
Fix Fixed mercurial (PyPI): 4.1.3Red Hat: 1 advisory

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 4.1.34.1.3Patch availableGHSA-ghjx-3jg5-h6r2
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • mercurial (PyPI) Vendor— Affected before 4.1.3 Fixed in 4.1.3 Patch available GHSA-ghjx-3jg5-h6r2

CPE configurations NVD · 18

CPEVersionsRoleVendor
cpe:2.3:a:mercurial:mercurial:*:*:*:*:*:*:*:*before 4.1.3VulnerableMercurial
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:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*7.3VulnerableRed 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:a:mercurial:mercurial:*:*:*:*:*:*:*:* Versions before 4.1.3 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:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 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:7.3:*:*:*:*:*:*:* Versions 7.3 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
Show 8 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*7.3VulnerableRed 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:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:* Versions 7.3 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
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:* Versions 7.3 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:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

  • Fix · GHSA-ghjx-3jg5-h6r2 mercurial (PyPI) Fixed in 4.1.3 Advisory →

Red Hat 1 advisory

  • RHSA-2017:1576 Released 2017-06-27 · Red Hat rating Important
    mercurial security update
    • Red Hat Enterprise Linux Client Optional (v. 7) emacs-mercurial-2.6.2-7.el7_3, emacs-mercurial-el-2.6.2-7.el7_3, mercurial-2.6.2-7.el7_3 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) emacs-mercurial-2.6.2-7.el7_3, emacs-mercurial-el-2.6.2-7.el7_3, mercurial-2.6.2-7.el7_3 +1
    • Red Hat Enterprise Linux Desktop Optional (v. 6) emacs-mercurial-1.4-5.el6_9, emacs-mercurial-el-1.4-5.el6_9, mercurial-1.4-5.el6_9 +1
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) emacs-mercurial-1.4-5.el6_9, emacs-mercurial-el-1.4-5.el6_9, mercurial-1.4-5.el6_9 +1
    • Red Hat Enterprise Linux Server (v. 6) mercurial-1.4-5.el6_9
    • Red Hat Enterprise Linux Server (v. 7) mercurial-2.6.2-7.el7_3
    • Red Hat Enterprise Linux Server Optional (v. 6) emacs-mercurial-1.4-5.el6_9, emacs-mercurial-el-1.4-5.el6_9, mercurial-hgk-1.4-5.el6_9
    • Red Hat Enterprise Linux Server Optional (v. 7) emacs-mercurial-2.6.2-7.el7_3, emacs-mercurial-el-2.6.2-7.el7_3, mercurial-hgk-2.6.2-7.el7_3
    • Red Hat Enterprise Linux Workstation (v. 6) mercurial-1.4-5.el6_9
    • Red Hat Enterprise Linux Workstation (v. 7) mercurial-2.6.2-7.el7_3
    • Red Hat Enterprise Linux Workstation Optional (v. 6) emacs-mercurial-1.4-5.el6_9, emacs-mercurial-el-1.4-5.el6_9, mercurial-hgk-1.4-5.el6_9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) emacs-mercurial-2.6.2-7.el7_3, emacs-mercurial-el-2.6.2-7.el7_3, mercurial-hgk-2.6.2-7.el7_3

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:1576
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:1576
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2017:1576
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2017:1576
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2017:1576
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:1576
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2017:1576
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:1576
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2017:1576
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:1576
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2017:1576
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:1576

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-9462
  2. 2026-10-03 Alias added: GHSA-ghjx-3jg5-h6r2

References

Patch 1

Advisory 8

Other 2

Sources

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