CVE-2026-15816
Dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die()
02 Description
Dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die()
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.46% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 40.2% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-27.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-07 10:33Z2 MO AGO
- Last updated
- 2026-10-27 21:54Z1 DAY AGO
- Reserved
- 2026-07-15
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
- Data version
- 5.2
- Document digest
- 87dae46a11032785d3ec7f3ad8df72a12e4bdabc0a0d484ebed5471245d90a21
05 Affected products
06 References
- access.redhat.comRHSA-2026:54571https://access.redhat.com/errata/RHSA-2026:54571
- access.redhat.comRHSA-2026:54575https://access.redhat.com/errata/RHSA-2026:54575
- access.redhat.comRHSA-2026:54576https://access.redhat.com/errata/RHSA-2026:54576
- access.redhat.comRHSA-2026:57580https://access.redhat.com/errata/RHSA-2026:57580
- access.redhat.comRHSA-2026:57772https://access.redhat.com/errata/RHSA-2026:57772
- access.redhat.comRHSA-2026:57775https://access.redhat.com/errata/RHSA-2026:57775
- access.redhat.comRHSA-2026:57785https://access.redhat.com/errata/RHSA-2026:57785
- access.redhat.comRHSA-2026:60440https://access.redhat.com/errata/RHSA-2026:60440
- access.redhat.comRHSA-2026:60445https://access.redhat.com/errata/RHSA-2026:60445
- access.redhat.comRHSA-2026:61252https://access.redhat.com/errata/RHSA-2026:61252
- access.redhat.comRHSA-2026:62269https://access.redhat.com/errata/RHSA-2026:62269
- access.redhat.comRHSA-2026:62409https://access.redhat.com/errata/RHSA-2026:62409
- access.redhat.comRHSA-2026:62549https://access.redhat.com/errata/RHSA-2026:62549
- access.redhat.comRHSA-2026:63041https://access.redhat.com/errata/RHSA-2026:63041
- access.redhat.comRHSA-2026:63044https://access.redhat.com/errata/RHSA-2026:63044
- access.redhat.comRHSA-2026:65839https://access.redhat.com/errata/RHSA-2026:65839
- access.redhat.comRHSA-2026:65851https://access.redhat.com/errata/RHSA-2026:65851
- access.redhat.comRHSA-2026:66357https://access.redhat.com/errata/RHSA-2026:66357
- access.redhat.comRHSA-2026:67857https://access.redhat.com/errata/RHSA-2026:67857
- access.redhat.comRHSA-2026:69118https://access.redhat.com/errata/RHSA-2026:69118
- access.redhat.comRHSA-2026:69119https://access.redhat.com/errata/RHSA-2026:69119
- access.redhat.comRHSA-2026:70586https://access.redhat.com/errata/RHSA-2026:70586
- access.redhat.comRHSA-2026:70615https://access.redhat.com/errata/RHSA-2026:70615
- access.redhat.comRHSA-2026:74499https://access.redhat.com/errata/RHSA-2026:74499
- access.redhat.comRHSA-2026:79114https://access.redhat.com/errata/RHSA-2026:79114
- access.redhat.comRHSA-2026:90272https://access.redhat.com/errata/RHSA-2026:90272
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-15816
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2459963
- bugzilla.redhat.comRHBZ#2500889https://bugzilla.redhat.com/show_bug.cgi?id=2500889
- github.comhttps://github.com/dracutdevs/dracut/blob/master/modules.d/40network/netroot.sh
- github.comhttps://github.com/dracutdevs/dracut/blob/master/modules.d/99base/dracut-lib.sh
07 Fixed in
AlmaLinux 8
- dracut Fixed in 049-246.git20260728.el8_10
- dracut-caps Fixed in 049-246.git20260728.el8_10
- dracut-config-generic Fixed in 049-246.git20260728.el8_10
- dracut-config-rescue Fixed in 049-246.git20260728.el8_10
- dracut-live Fixed in 049-246.git20260728.el8_10
- dracut-network Fixed in 049-246.git20260728.el8_10
- dracut-squash Fixed in 049-246.git20260728.el8_10
- dracut-tools Fixed in 049-246.git20260728.el8_10
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- dracut Fixed in 057-120.git20260728.el9_8
- dracut-caps Fixed in 057-120.git20260728.el9_8
- dracut-config-generic Fixed in 057-120.git20260728.el9_8
- dracut-config-rescue Fixed in 057-120.git20260728.el9_8
- dracut-live Fixed in 057-120.git20260728.el9_8
- dracut-network Fixed in 057-120.git20260728.el9_8
- dracut-squash Fixed in 057-120.git20260728.el9_8
- dracut-tools Fixed in 057-120.git20260728.el9_8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- dracut Fixed in 107-9.el10_2
- dracut-caps Fixed in 107-9.el10_2
- dracut-config-generic Fixed in 107-9.el10_2
- dracut-config-rescue Fixed in 107-9.el10_2
- dracut-live Fixed in 107-9.el10_2
- dracut-network Fixed in 107-9.el10_2
- dracut-squash Fixed in 107-9.el10_2
- dracut-tools Fixed in 107-9.el10_2
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- dracut Fixed in 049-246.git20260728.el8_10
- dracut-caps Fixed in 049-246.git20260728.el8_10
- dracut-config-generic Fixed in 049-246.git20260728.el8_10
- dracut-config-rescue Fixed in 049-246.git20260728.el8_10
- dracut-live Fixed in 049-246.git20260728.el8_10
- dracut-network Fixed in 049-246.git20260728.el8_10
- dracut-squash Fixed in 049-246.git20260728.el8_10
- dracut-tools Fixed in 049-246.git20260728.el8_10
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- dracut Fixed in 057-120.git20260728.el9_8
- dracut-caps Fixed in 057-120.git20260728.el9_8
- dracut-config-generic Fixed in 057-120.git20260728.el9_8
- dracut-config-rescue Fixed in 057-120.git20260728.el9_8
- dracut-live Fixed in 057-120.git20260728.el9_8
- dracut-network Fixed in 057-120.git20260728.el9_8
- dracut-squash Fixed in 057-120.git20260728.el9_8
- dracut-tools Fixed in 057-120.git20260728.el9_8
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 10
- dracut Fixed in 107-9.el10_2
- dracut-caps Fixed in 107-9.el10_2
- dracut-config-generic Fixed in 107-9.el10_2
- dracut-config-rescue Fixed in 107-9.el10_2
- dracut-live Fixed in 107-9.el10_2
- dracut-network Fixed in 107-9.el10_2
- dracut-squash Fixed in 107-9.el10_2
- dracut-tools Fixed in 107-9.el10_2
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- dracut No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- dracut No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- dracut Fixed in 112-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- dracut Fixed in 060+5-1ubuntu3.4
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- dracut Fixed in 110-11ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- dracut Fixed in 044+3-3ubuntu0.1~esm1Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- dracut Fixed in 047-2ubuntu0.1~esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- dracut Fixed in 048+80-2ubuntu0.1~esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 22.04 LTS
- dracut Fixed in 051-1ubuntu0.1~esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.