CVE Explorer
CVE-2026-47274
pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, multiple pam_usb helper tools resolved external binaries through the PATH environment variable rather than using absolute paths. An attacker who can influence the process environment during PAM authentication or tool execution could substitute malicious binaries. The affected tools are pamusb-check (src/tmux.c), pamusb-conf (tools/pamusb-conf), and pamusb-keyring-unlock-gnome (tools/pamusb-keyring-
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":"< 0.9.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:d5162a4e2544eca3bfddca225cb71dffc1195618611a093b9d5369ef079da753 · sha256:85500d3152591fc4… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:d5162a4e2544eca3bfddca225cb71dffc1195618611a093b9d5369ef079da753 · sha256:85500d3152591fc4… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-427","description":"CWE-427: Uncontrolled Search Path Element","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:d5162a4e2544eca3bfddca225cb71dffc1195618611a093b9d5369ef079da753 · sha256:85500d3152591fc4… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/mcdope/pam_usb/commit/1ee8745920388df48d001a8e61ba629071557937","tags":["x_refsource_MISC"],"url":"https://github.com/mcdope/pam_usb/commit/1ee8745920388df48d001a8e61ba629071557937"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d5162a4e2544eca3bfddca225cb71dffc1195618611a093b9d5369ef079da753 · sha256:85500d3152591fc4… · /containers/cna/references/1
{"name":"https://github.com/mcdope/pam_usb/commit/52a1fd6413b7ffcc1a5b58ce432be42e7bf0dbd0","tags":["x_refsource_MISC"],"url":"https://github.com/mcdope/pam_usb/commit/52a1fd6413b7ffcc1a5b58ce432be42e7bf0dbd0"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d5162a4e2544eca3bfddca225cb71dffc1195618611a093b9d5369ef079da753 · sha256:85500d3152591fc4… · /containers/cna/references/2
{"name":"https://github.com/mcdope/pam_usb/commit/993e73d8bebb1d8e62677388de3402b6ec36b600","tags":["x_refsource_MISC"],"url":"https://github.com/mcdope/pam_usb/commit/993e73d8bebb1d8e62677388de3402b6ec36b600"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d5162a4e2544eca3bfddca225cb71dffc1195618611a093b9d5369ef079da753 · sha256:85500d3152591fc4… · /containers/cna/references/3
{"name":"https://github.com/mcdope/pam_usb/security/advisories/GHSA-pp29-w28g-r9h9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/mcdope/pam_usb/security/advisories/GHSA-pp29-w28g-r9h9"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d5162a4e2544eca3bfddca225cb71dffc1195618611a093b9d5369ef079da753 · sha256:85500d3152591fc4… · /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.