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Vulnerability record · CVE-2017-5226 · published 29 March 2017

CVE-2017-5226: Projectatomic bubblewrap improper input validation vulnerability

Projectatomic · Bubblewrap

When executing a program via the bubblewrap sandbox, the nonpriv session can escape to the parent session by using the TIOCSTI ioctl to push characters into the terminal's input buffer, allowing an attacker to escape the sandbox.

10.0 CVSS 3.0 Critical EPSS 3.2% · top 12.5% CWE-20 · Improper input validation
10.0CVSS 3.0 base score, v2 7.5
3.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

When executing a program via the bubblewrap sandbox, the nonpriv session can escape to the parent session by using the TIOCSTI ioctl to push characters into the terminal's input buffer, allowing an attacker to escape the sandbox.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2020/07/10/1
http://www.openwall.com/lists/oss-security/2023/03/17/1
http://www.securityfocus.com/bid/97260 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1411811 Issue TrackingPatch
https://github.com/projectatomic/bubblewrap/commit/d7fc532c42f0e9bf427923bab85433282b3e5117 Patch
https://github.com/projectatomic/bubblewrap/issues/142 ExploitPatchVendor Advisory
https://www.openwall.com/lists/oss-security/2023/03/14/2
http://www.openwall.com/lists/oss-security/2020/07/10/1
http://www.openwall.com/lists/oss-security/2023/03/17/1
http://www.securityfocus.com/bid/97260 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1411811 Issue TrackingPatch
https://github.com/projectatomic/bubblewrap/commit/d7fc532c42f0e9bf427923bab85433282b3e5117 Patch
https://github.com/projectatomic/bubblewrap/issues/142 ExploitPatchVendor Advisory
https://www.openwall.com/lists/oss-security/2023/03/14/2

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-5226), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.