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CVE-2026-48064

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, when a PAM service is configured with deny_remote=false in pam_usb (commonly done for display managers such as gdm-password or lightdm to bypass process/TTY heuristics for local sessions), the PAM_RHOST check in pusb_do_auth() is also skipped. PAM_RHOST is set by remote daemons (sshd, XDMCP servers) to identify the remote client address. Because the check is gated inside if (opts.deny_remote), a ge
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5665d32863002cd4a7d362e0df9fab01cc6827f925ac7552a5f59241b44c4b63
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"pam_usb","vendor":"mcdope","versions":[{"status":"affected","version":"< 0.9.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:753e7af7b6a2e02fe8e1bd1fbb93aa1be44ebd0ad647495467748110283cd977 · sha256:a2163b350976189c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:753e7af7b6a2e02fe8e1bd1fbb93aa1be44ebd0ad647495467748110283cd977 · sha256:a2163b350976189c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:753e7af7b6a2e02fe8e1bd1fbb93aa1be44ebd0ad647495467748110283cd977 · sha256:a2163b350976189c… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["exploit"],"url":"https://github.com/mcdope/pam_usb/issues/348"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:753e7af7b6a2e02fe8e1bd1fbb93aa1be44ebd0ad647495467748110283cd977 · sha256:a2163b350976189c… · /containers/adp/0/references/0
{"name":"https://github.com/mcdope/pam_usb/issues/348","tags":["x_refsource_MISC"],"url":"https://github.com/mcdope/pam_usb/issues/348"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:753e7af7b6a2e02fe8e1bd1fbb93aa1be44ebd0ad647495467748110283cd977 · sha256:a2163b350976189c… · /containers/cna/references/1
{"name":"https://github.com/mcdope/pam_usb/security/advisories/GHSA-w38v-cw9r-x9p6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/mcdope/pam_usb/security/advisories/GHSA-w38v-cw9r-x9p6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:753e7af7b6a2e02fe8e1bd1fbb93aa1be44ebd0ad647495467748110283cd977 · sha256:a2163b350976189c… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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