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Critical

Git before 1.8.5.6, 1.9.x before 1.9.5, 2.0.x before 2.0.5, 2.1.x before 2.1.4, and 2.2.x before 2.2.1 on Windows and OS X; Mercurial before 3.2.3 on Windows and OS X; Apple Xcode before 6.2 beta 3; m

  • Disclosed: 12.02.2020
  • Updated: 11.10.2026 12:20

Git before 1.8.5.6, 1.9.x before 1.9.5, 2.0.x before 2.0.5, 2.1.x before 2.1.4, and 2.2.x before 2.2.1 on Windows and OS X; Mercurial before 3.2.3 on Windows and OS X; Apple Xcode before 6.2 beta 3; mine all versions before 08-12-2014; libgit2 all versions up to 0.21.2; Egit all versions before 08-12-2014; and JGit all versions before 08-12-2014 allow remote Git servers to execute arbitrary commands via a tree containing a crafted .git/config file with (1) an ignorable Unicode codepoint, (2) a git~1/config representation, or (3) mixed case that is improperly handled on a case-insensitive filesystem.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.eclipse.jgit:org.eclipse.jgit < 3.5.3 3.5.3
Python (PyPI) mercurial < 3.2.3 3.2.3

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-20
Platform
Java / Kotlin (Maven), Python (PyPI)
Package
org.eclipse.jgit:org.eclipse.jgit, mercurial
Disclosed
12.02.2020
Updated
11.10.2026 12:20

Sources and licenses

OSV / GitHub Advisory Database - GHSA-6vvc-c2m3-cjf3 - CC BY 4.0

OSV / GitHub Advisory Database - PYSEC-2020-217 - PyPA Advisory Database; CC BY 4.0

Vulnerability history: mercurial

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (18) in the archive
Total entries
18
First → latest
03.2015 05.2022
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 6
  • High 9
  • Medium 3

Disclosures per year

earlier: 5

Severity:
  1. Git before 1.8.5.6, 1.9.x before 1.9.5, 2.0.x before 2.0.5, 2.1.x before 2.1.4, and 2.2.x before 2.2.1 on Windows and OS X; Mercurial before 3.2.3 on Windows and OS X; Apple Xcode before 6.2 beta 3; m this entry
    Critical · 9.8 CVE-2014-9390 < 3.2.3 3.2.3
  2. cext/manifest.c in Mercurial before 4.7.2 has an out-of-bounds read during parsing of a malformed manifest entry.
    High · 9.1 CVE-2018-17983 < 4.7.2 4.7.2
  3. mpatch.c in Mercurial before 4.6.1 mishandles integer addition and subtraction, aka OVE-20180430-0002.
    Critical · 9.8 CVE-2018-13347 < 4.6.1 4.6.1
  4. The mpatch_apply function in mpatch.c in Mercurial before 4.6.1 incorrectly proceeds in cases where the fragment start is past the end of the original data, aka OVE-20180430-0004.
    High · 7.5 CVE-2018-13346 < 4.6.1 4.6.1
  5. The mpatch_decode function in mpatch.c in Mercurial before 4.6.1 mishandles certain situations where there should be at least 12 bytes remaining after the current position in the patch data, but actua
    High · 7.5 CVE-2018-13348 < 4.6.1 4.6.1
  6. 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 n
    Critical · 9.1 CVE-2018-1000132 < 4.5.1 4.5.1
  7. In Mercurial before 4.4.1, it is possible that a specially malformed repository can cause Git subrepositories to run arbitrary code in the form of a .git/hooks/post-update script checked into the repo
    Critical · 9.8 CVE-2017-17458 < 4.4.1 4.4.1
  8. Mercurial prior to 4.3 did not adequately sanitize hostnames passed to ssh, leading to possible shell-injection attacks.
    Critical · 9.8 CVE-2017-1000116 < 4.3 4.3
  9. Mercurial prior to version 4.3 is vulnerable to a missing symlink check that can malicious repositories to modify files outside the repository
    High · 7.5 CVE-2017-1000115 < 4.3 4.3
  10. Mercurial has Incorrect Permission Assignment for Critical Resource
    High · 8.8 CVE-2017-9462 < 4.1.3 4.1.3
  11. The convert extension in Mercurial before 3.8 might allow context-dependent attackers to execute arbitrary code via a crafted git repository name.
    High · 8.8 CVE-2016-3105 < 3.8-rc 3.8-rc
  12. The binary delta decoder in Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a (1) clone, (2) push, or (3) pull command, related to (a) a list sizing rounding error and (b)
    High · 8.8 CVE-2016-3630 < 3.7.3 3.7.3
  13. Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a crafted name when converting a Git repository.
    High · 8.8 CVE-2016-3069 < 3.7.3 3.7.3
  14. Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a crafted git ext:: URL when cloning a subrepository.
    High · 8.8 CVE-2016-3068 < 3.7.3 3.7.3
  15. The _validaterepo function in sshpeer in Mercurial before 3.2.4 allows remote attackers to execute arbitrary commands via a crafted repository name in a clone command.
    Critical · 9.8 CVE-2014-9462 < 3.2.4 3.2.4

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