CVE-2026-47273: mcdope pam_usb · XML Injection
Affects mcdope pam_usbSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 0.9.0 when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.9.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 27 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade pam_usb and mcdope/pam_usb to 0.9.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| mcdopepam_usb | Affected
| Fixed in
|
GitHubmcdope/pam_usbpkg:github/mcdope/pam_usbOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade pam_usb to version 0.9.0 or later, where this XML Injection vulnerability is fixed. Patch status is not explicitly confirmed beyond the version fix note; check vendor sources for current remediation guidance.
Description
pam_usb versions prior to 0.9.0 are vulnerable to an XML Injection (Blind XPath Injection) due to improper validation of user- and device-supplied identifiers used in XPath queries against /etc/pamusb.conf. This allows injection of arbitrary XPath predicates. The vulnerability is fixed in version 0.9.0. The CVSS score is 6.5, indicating a medium severity issue.