CVE-2026-41651
PackageKit vulnerable to TOCTOU Race on Transaction Flags leads to arbitrary package installation as root
02 Description
PackageKit vulnerable to TOCTOU Race on Transaction Flags leads to arbitrary package installation as root
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 39.5% of scored records. A rank, not a probability.
- NVD base score
- 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-07-15.
- 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
- 2026-04-22 13:11Z6 MO AGO
- Last updated
- 2026-07-15 00:58Z3 MO AGO
- Reserved
- 2026-04-21
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase
- Data version
- 5.2
- Document digest
- ea2da3507821fc75ba512b53c00aa67be0cdeac55e4586d9fb43aa35a21a7239
05 Affected products
06 References
- github.comhttps://github.com/PackageKit/PackageKit/security/advisories/GHSA-f55j-vvr9-69xv
- github.comhttps://github.com/PackageKit/PackageKit/blob/04057883189efa225a7c785591aa87cb299782f8/src/pk-transaction.c#L2273-L2277
- github.comhttps://github.com/PackageKit/PackageKit/blob/04057883189efa225a7c785591aa87cb299782f8/src/pk-transaction.c#L4036
- github.comhttps://github.com/PackageKit/PackageKit/blob/04057883189efa225a7c785591aa87cb299782f8/src/pk-transaction.c#L873-L882
- github.security.telekom.comhttps://github.security.telekom.com/2026/04/pack2theroot-linux-local-privilege-escalation.html
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/04/22/6
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-41651
- bugzilla.redhat.comRHBZ#2460604https://bugzilla.redhat.com/show_bug.cgi?id=2460604
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41651.json
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:22146
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:19601
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:19141
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:11635
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:17558
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:17561
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:17560
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:18024
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:18036
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:19454
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:18031
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:11504
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:19354
07 Fixed in
AlmaLinux 8
- PackageKit Fixed in 1.1.12-8.el8_10
- PackageKit-command-not-found Fixed in 1.1.12-8.el8_10
- PackageKit-cron Fixed in 1.1.12-8.el8_10
- PackageKit-glib Fixed in 1.1.12-8.el8_10
- PackageKit-glib-devel Fixed in 1.1.12-8.el8_10
- PackageKit-gstreamer-plugin Fixed in 1.1.12-8.el8_10
- PackageKit-gtk3-module Fixed in 1.1.12-8.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
- PackageKit Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.el9_8
- PackageKit-command-not-found Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.el9_8
- PackageKit-glib Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.el9_8
- PackageKit-glib-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.el9_8
- PackageKit-gstreamer-plugin Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.el9_8
- PackageKit-gtk3-module Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.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
- PackageKit Fixed in 1.2.8-8.el10_2
- PackageKit-command-not-found Fixed in 1.2.8-8.el10_2
- PackageKit-glib Fixed in 1.2.8-8.el10_2
- PackageKit-glib-devel Fixed in 1.2.8-8.el10_2
- PackageKit-gstreamer-plugin Fixed in 1.2.8-8.el10_2
- PackageKit-gtk3-module Fixed in 1.2.8-8.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
- PackageKit Fixed in 1.1.12-8.el8_10
- PackageKit-command-not-found Fixed in 1.1.12-8.el8_10
- PackageKit-cron Fixed in 1.1.12-8.el8_10
- PackageKit-glib Fixed in 1.1.12-8.el8_10
- PackageKit-glib-devel Fixed in 1.1.12-8.el8_10
- PackageKit-gstreamer-plugin Fixed in 1.1.12-8.el8_10
- PackageKit-gtk3-module Fixed in 1.1.12-8.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
- PackageKit Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.el9_8
- PackageKit-command-not-found Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.el9_8
- PackageKit-glib Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.el9_8
- PackageKit-glib-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.el9_8
- PackageKit-gstreamer-plugin Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.el9_8
- PackageKit-gtk3-module Fixed
A version is affected if any line below covers it.
- Affected before 1.2.6-2.el9_7
- Affected before 1.2.6-2.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
- PackageKit Fixed in 1.2.8-8.el10_2
- PackageKit-command-not-found Fixed in 1.2.8-8.el10_2
- PackageKit-glib Fixed in 1.2.8-8.el10_2
- PackageKit-glib-devel Fixed in 1.2.8-8.el10_2
- PackageKit-gstreamer-plugin Fixed in 1.2.8-8.el10_2
- PackageKit-gtk3-module Fixed in 1.2.8-8.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
- packagekit Fixed in 1.2.6-5+deb12u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- packagekit Fixed in 1.3.1-1+deb13u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- packagekit Fixed in 1.3.5-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- packagekit Fixed in 1.2.5-2ubuntu3.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- packagekit Fixed in 1.2.8-2ubuntu1.5
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- packagekit Fixed in 1.3.1-1ubuntu1.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- packagekit Fixed in 1.3.4-3ubuntu1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- packagekit Fixed in 0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1Available with Ubuntu Pro (Infra-only): 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
- packagekit Fixed in 1.1.9-1ubuntu2.18.04.6+esm1Available with Ubuntu Pro (Infra-only): 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
- packagekit Fixed in 1.1.13-2ubuntu1.1+esm1Available with Ubuntu Pro (Infra-only): 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.