CVE-2026-102925

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Source
https://cve.org/CVERecord?id=CVE-2026-102925
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102925.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-102925
Aliases
Downstream
Published
2026-09-29T20:50:57Z
Modified
2026-10-01T11:30:42Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
virtualenv bash and fish activation scripts execute commands embedded in paths
Details

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.13, the generated activate (bash and zsh) and activate.fish scripts place values already escaped by shlex.quote inside an additional quoted context. In the bash and zsh script, a crafted virtual environment path reaches VIRTUAL_ENV when a relocated environment's recorded directory is absent; in the fish script, crafted Tcl or Tk library paths reach TCL_LIBRARY or TK_LIBRARY. The surplus quotes can terminate the data-only quoted run and leave shell metacharacters parsed as commands when a user sources the activation script, allowing code execution with that user's privileges. This issue is fixed in version 21.7.13.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-78"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102925.json"
}
References

Affected packages

Git / github.com/pypa/virtualenv

Affected ranges

Type
GIT
Repo
https://github.com/pypa/virtualenv
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
4d5a105ec2a2723b8c7f4571bb68f4f71d01e3f6
Fixed
0c295ff1a5f298e8e11935e3588f59f7455c1f8f
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "21.7.13"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

20.*
20.0.0b1
20.0.0b2
20.0.32
20.0.7
20.24.3
20.27.2
20.27.3
20.3.0
20.37.0
20.38.0
20.39.0
20.39.1
21.*
21.0.0
21.1.0
21.2.0
21.2.1
21.2.2
21.2.3
21.2.4
21.3.0
21.3.1
21.3.2
21.3.3
21.4.0
21.4.1
21.4.2
21.4.3
21.5.0
21.5.1
21.5.2
21.6.0
21.6.1
21.7.0
21.7.1
21.7.10
21.7.11
21.7.12
21.7.2
21.7.3
21.7.4
21.7.5
21.7.6
21.7.7
21.7.8
21.7.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102925.json"