PYSEC-2026-563

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/vcspull/PYSEC-2026-563.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-563
Aliases
Published
2026-06-29T11:50:31.953566Z
Modified
2026-06-29T12:26:21.761856147Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Command injection in libvcs and vcspull
Details

The package libvcs before 0.11.1 are vulnerable to Command Injection via argument injection. When calling the update_repo function (when using hg), the url parameter is passed to the hg clone command. By injecting some hg options it was possible to get arbitrary command execution.

References

Affected packages

PyPI / vcspull

Package

Name
vcspull
View open source insights on deps.dev
Purl
pkg:pypi/vcspull

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.11.1

Affected versions

0.*
0.0.6
0.0.7
0.0.8
0.0.8.1
0.0.8.2
0.0.8.3
0.0.8.4
0.0.9
0.0.9.1
0.0.10
0.1.0
0.1.1
0.2.0
0.2.1
0.2.2
0.9.0
1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.1.0
1.2.0
1.3.0
1.3.0.post1
1.3.0.post2
1.3.1
1.4.0
1.4.1
1.4.2
1.4.3
1.5.0a1
1.5.0a2
1.5.0a3
1.5.0a4
1.5.0
1.6.0
1.6.1
1.7.0
1.7.0.post0
1.8.0
1.8.1
1.9.0
1.9.0.post1
1.9.0.post2
1.10.0
1.11.0

Database specific

source 
"https://github.com/pypa/advisory-database/blob/main/vulns/vcspull/PYSEC-2026-563.yaml"