Description
A flaw was found in polkit. When processing an XML policy with 32 or more nested elements in depth, an out-of-bounds write can be triggered. This issue can lead to a crash or other unexpected behavior, and arbitrary code execution is not discarded. To exploit this flaw, a high-privilege account is needed as it's required to place the malicious policy file properly.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | polkit | ≤ 126 | — |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | policykit-1 | 127-1 | — |
| Debian 13 | policykit-1 | No fix yet | — |
| Debian 12 | policykit-1 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | policykit-1 | 126-2ubuntu0.1 | USN-8173-1 |
| Ubuntu 24.04 LTS | policykit-1 | 124-2ubuntu1.24.04.3 | USN-8173-1 |
| Ubuntu 22.04 LTS | policykit-1 | 0.105-33ubuntu0.1 | USN-8173-1 |
| Ubuntu 20.04 LTS | policykit-1 | No fix yet | — |
| Ubuntu 18.04 LTS | policykit-1 | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | policykit-1 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | policykit-1 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | polkit | 121-150500.3.6.1 | SUSE-SU-2025:02527-1 |
| SLES 15 SP6 | polkit | 121-150500.3.6.1 | SUSE-SU-2025:02527-1 |
| SLES 15 SP5 | polkit | 121-150500.3.6.1 | SUSE-SU-2025:02527-1 |
| SLES 15 SP4 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
| SLES 15 SP3 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | polkit | 0.113-5.30.1 | SUSE-SU-2025:02525-1 |
| SLES for SAP 15 SP5 | polkit | 121-150500.3.6.1 | SUSE-SU-2025:02527-1 |
| SLES for SAP 15 SP4 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
| SLES for SAP 15 SP3 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
| SLE Micro 6.1 | polkit | 121-slfo.1.1_2.1 | SUSE-SU-2025:20662-1 |
| SLE Micro 6.0 | polkit | 121-3.1 | SUSE-SU-2025:20559-1 |
| SLE Micro 5.5 | polkit | 121-150500.3.6.1 | SUSE-SU-2025:02527-1 |
| SLE Micro 5.4 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
| SLE Micro 5.3 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
| SLE Micro 5.2 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
| SLE Micro 5.1 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
| SLE HPC 15 SP5 | polkit | 121-150500.3.6.1 | SUSE-SU-2025:02527-1 |
| SLE HPC 15 SP4 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
| SLE HPC 15 SP3 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
| SUSE Manager Server 4.3 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
| SUSE Manager Proxy 4.3 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
| SUSE Enterprise Storage 7.1 | polkit | 0.116-150200.3.15.1 | SUSE-SU-2025:02528-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | polkit | 127-3.1 | openSUSE-SU-2026:10453-1 |
| openSUSE Leap 15.6 | polkit | 121-150500.3.6.1 | SUSE-SU-2025:02527-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | polkit +3 | 125-1.amzn2023.0.2 | ALAS2023-2025-1217 |
| Amazon Linux 2 | polkit +2 | 0.112-26.amzn2.2.1 | ALAS2-2025-3024 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | polkit | 123-3 | — |
| Azure Linux 2 (CBL-Mariner) | polkit | 0.119-4 | — |
Advisories 9
- USN-8173-1 policykit-1 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- openSUSE-SU-2026:10453-1 libpolkit-agent-1-0-127-3.1 on GA media SUSE / openSUSE Security Updates · Mar 29, 2026
- SUSE-SU-2025:20662-1 Security update for polkit SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20559-1 Security update for polkit SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:02525-1 Security update for polkit SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:02528-1 Security update for polkit SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:02527-1 Security update for polkit SUSE / openSUSE Security Updates · Mar 23, 2026
- ALAS2-2025-3024 Moderate: polkit security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 14, 2025
- ALAS2023-2025-1217 Moderate: polkit security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 14, 2025