CVE-2017-1000116
Mercurial prior to 4.3 did not adequately sanitize hostnames passed to ssh, leading to possible shell-injection attacks.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Mercurial prior to 4.3 did not adequately sanitize hostnames passed to ssh, leading to possible shell-injection attacks.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 6.37% probability · 94th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- mercurial/mercurial · debian/debian linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- cve@mitre.org
EPSS 6.4% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.debian.org/security/2017/dsa-3963Third Party Advisory
- http://www.securityfocus.com/bid/100290Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2489Third Party Advisory
- https://security.gentoo.org/glsa/201709-18Patch, Third Party Advisory, VDB Entry
- https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.3_.2F_4.3.1_.282017-08-10.29Release Notes, Vendor Advisory
- http://www.debian.org/security/2017/dsa-3963Third Party Advisory
- http://www.securityfocus.com/bid/100290Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2489Third Party Advisory
- https://security.gentoo.org/glsa/201709-18Patch, Third Party Advisory, VDB Entry
- https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.3_.2F_4.3.1_.282017-08-10.29Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.