CVE-2026-48980

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Source

https://cve.org/CVERecord?id=CVE-2026-48980

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48980.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-48980

Aliases

GHSA-qr83-mf3h-fvqr

Published

2026-06-18T19:26:05Z

Modified

2026-10-28T11:11:26Z

Severity

6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

pam_usb: getenv() used in PAM context allows environment variable injection into local-check logic

Details

pam_usb provides hardware authentication for Linux using removable media. In versions prior to 0.9.2, getenv() environment variables XRDP_SESSION, DISPLAY and TMUX allow environment variable injection into local-check logic. These environment variables influence whether a current session is local or remote, and a PAM module that runs in the context of setuid binaries (sudo, su), getenv() returns attacker-controlled values whenever the process environment has been manipulated by a local user. This issue has been fixed in version 0.9.2.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-454",
        "CWE-807"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48980.json"
}

References

Affected packages

Git / github.com/mcdope/pam_usb

Affected ranges

Type

GIT

Repo

https://github.com/mcdope/pam_usb

Events

Introduced

Fixed

d4083e266b7e18e41e58b3392b5856941a3b5b1c

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "0.9.2"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "original_tag":  "0.9.2",
            "range":  [
                {
                    "fixed":  "d4083e266b7e18e41e58b3392b5856941a3b5b1c"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "0.9.2"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

0.*

0.5.0

0.7.1

0.7.2

0.7.3

0.8.3

0.8.4

0.8.7

0.9.0

0.9.1

v0.*

v0.7.0

v0.8.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48980.json"

vanir_signatures

[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "207168628483260584139415185282640304588"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-48980-efc14bc2",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/mcdope/pam_usb/commit/d4083e266b7e18e41e58b3392b5856941a3b5b1c",
        "target":  {
            "file":  "src/version.h"
        }
    }
]

vanir_signatures_modified

"2026-10-28T11:11:26Z"