CVE catalog
CVE-2026-4897
A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbound
- Severity
- Medium · CVSS 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.16% · Oct 25, 2026
A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | policykit-1 | sid | 128-1 | fixed |
| Debian | policykit-1 | forky | 128-1 | fixed |
| Debian | policykit-1 | trixie | 126-2 | vulnerable |
| Debian | policykit-1 | bookworm | 122-3 | vulnerable |
| Cpe | policykit-1 | Not reported | 124-2ubuntu1.24.04.3 | fixed |
| Cpe | gir1.2-polkit-1.0 | Not reported | 124-2ubuntu1.24.04.3 | fixed |
| Cpe | libpolkit-agent-1-0 | Not reported | 124-2ubuntu1.24.04.3 | fixed |
| Cpe | libpolkit-agent-1-dev | Not reported | 124-2ubuntu1.24.04.3 | fixed |
| Cpe | libpolkit-gobject-1-0 | Not reported | 124-2ubuntu1.24.04.3 | fixed |
| Cpe | libpolkit-gobject-1-dev | Not reported | 124-2ubuntu1.24.04.3 | fixed |
| Cpe | pkexec | Not reported | 124-2ubuntu1.24.04.3 | fixed |
| Cpe | policykit-1-doc | Not reported | 124-2ubuntu1.24.04.3 | fixed |
| Cpe | polkitd | Not reported | 124-2ubuntu1.24.04.3 | fixed |
| Cpe | polkitd-pkla | Not reported | 124-2ubuntu1.24.04.3 | fixed |
| Cpe | policykit-1 | Not reported | Not reported | vulnerable |
| Cpe | polkit | Not reported | Not reported | unknown |
| Cpe | openshift_container_platform | Not reported | Not reported | unknown |
| Cpe | enterprise_linux | Not reported | Not reported | unknown |
| Cpe | polkit | Not reported | Not reported | unknown |
| Cpe | openshift_container_platform | Not reported | Not reported | unknown |
| Cpe | enterprise_linux | Not reported | Not reported | unknown |
| Suse | polkit | linux enterprise server 16.0 | 123-160000.3.1 | fixed |
| Suse | polkit | linux enterprise server for sap applications 16.0 | 123-160000.3.1 | fixed |
| Opensuse | polkit | leap 16.0 | 123-160000.3.1 | fixed |
| Suse | polkit | linux micro 6.2 | 123-160000.3.1 | fixed |
| Ubuntu | policykit-1 | pro | 0.105-11ubuntu2 | vulnerable |
| Ubuntu | policykit-1 | pro | 0.105-13 | vulnerable |
| Ubuntu | policykit-1 | pro | 0.105-13ubuntu1 | vulnerable |
| Ubuntu | policykit-1 | pro | 0.105-14 | vulnerable |
| Ubuntu | policykit-1 | pro | 0.105-14.1 | vulnerable |
| Ubuntu | policykit-1 | pro | 0.105-14.1ubuntu0.1 | vulnerable |
| Ubuntu | policykit-1 | pro | 0.105-14.1ubuntu0.4 | vulnerable |
| Ubuntu | policykit-1 | pro | 0.105-14.1ubuntu0.5 | vulnerable |
| Ubuntu | policykit-1 | pro | 0.105-14.1ubuntu0.5+esm1 | vulnerable |
| Ubuntu | policykit-1 | 18.04 | 0.105-18 | vulnerable |
| Ubuntu | policykit-1 | 18.04 | 0.105-20 | vulnerable |
| Ubuntu | policykit-1 | 18.04 | 0.105-20ubuntu0.18.04.1 | vulnerable |
| Ubuntu | policykit-1 | 18.04 | 0.105-20ubuntu0.18.04.4 | vulnerable |
| Ubuntu | policykit-1 | 18.04 | 0.105-20ubuntu0.18.04.5 | vulnerable |
| Ubuntu | policykit-1 | 18.04 | 0.105-20ubuntu0.18.04.6 | vulnerable |
| Ubuntu | policykit-1 | 20.04 | 0.105-26ubuntu1 | vulnerable |
| Ubuntu | policykit-1 | 20.04 | 0.105-26ubuntu1.1 | vulnerable |
| Ubuntu | policykit-1 | 20.04 | 0.105-26ubuntu1.2 | vulnerable |
| Ubuntu | policykit-1 | 20.04 | 0.105-26ubuntu1.3 | vulnerable |
| Ubuntu | policykit-1 | 22.04 | 0.105-31 | vulnerable |
| Ubuntu | policykit-1 | 22.04 | 0.105-31ubuntu1 | vulnerable |
| Ubuntu | policykit-1 | 22.04 | 0.105-31.1 | vulnerable |
| Ubuntu | policykit-1 | 22.04 | 0.105-32 | vulnerable |
| Ubuntu | policykit-1 | 22.04 | 0.105-33 | vulnerable |
| Ubuntu | policykit-1 | 22.04 | 0.105-33ubuntu0.1 | fixed |
| Ubuntu | policykit-1 | 24.04 | 123-1 | vulnerable |
| Ubuntu | policykit-1 | 24.04 | 123-3 | vulnerable |
| Ubuntu | policykit-1 | 24.04 | 124-1 | vulnerable |
| Ubuntu | policykit-1 | 24.04 | 124-1ubuntu1 | vulnerable |
| Ubuntu | policykit-1 | 24.04 | 124-2ubuntu1 | vulnerable |
| Ubuntu | policykit-1 | 24.04 | 124-2ubuntu1.24.04.2 | vulnerable |
| Ubuntu | policykit-1 | 24.04 | 124-2ubuntu1.24.04.3 | fixed |
| Ubuntu | policykit-1 | 25.10 | 126-2 | vulnerable |
| Ubuntu | policykit-1 | 25.10 | 126-2ubuntu0.1 | fixed |
| Suse | polkit | linux enterprise server ltss extended security 12 sp5 | 0.113-5.35.1 | fixed |
| Suse | polkit | linux enterprise micro 5.5 | 121-150500.3.11.1 | fixed |
| Suse | polkit | linux enterprise module for basesystem 15 sp7 | 121-150500.3.11.1 | fixed |
| Opensuse | polkit | leap 15.6 | 121-150500.3.11.1 | fixed |
| Suse | polkit | linux micro 6.1 | 121-slfo.1.1_3.1 | fixed |
| Suse | expat | linux micro 6.2 | 2.7.1-160000.5.1 | fixed |
| Suse | polkit | linux micro 6.0 | 121-4.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | policykit-1 | source | sid | 127-3 | not yet assigned | Not reported | [1132234] |
| Debian | policykit-1 | source | forky | 127-3 | not yet assigned | Not reported | [1132234] |
| Debian | policykit-1 | source | trixie | (unfixed) | not yet assigned | Not reported | [1132234] |
| Debian | policykit-1 | source | bookworm | (unfixed) | not yet assigned | Not reported | [1132234] |
| Cpe | policykit-1 | cpe | Not reported | 124-2ubuntu1.24.04.3 | Not reported | Not reported | Not reported |
| Cpe | gir1.2-polkit-1.0 | cpe | Not reported | 124-2ubuntu1.24.04.3 | Not reported | Not reported | Not reported |
| Cpe | libpolkit-agent-1-0 | cpe | Not reported | 124-2ubuntu1.24.04.3 | Not reported | Not reported | Not reported |
| Cpe | libpolkit-agent-1-dev | cpe | Not reported | 124-2ubuntu1.24.04.3 | Not reported | Not reported | Not reported |
| Cpe | libpolkit-gobject-1-0 | cpe | Not reported | 124-2ubuntu1.24.04.3 | Not reported | Not reported | Not reported |
| Cpe | libpolkit-gobject-1-dev | cpe | Not reported | 124-2ubuntu1.24.04.3 | Not reported | Not reported | Not reported |
| Cpe | pkexec | cpe | Not reported | 124-2ubuntu1.24.04.3 | Not reported | Not reported | Not reported |
| Cpe | policykit-1-doc | cpe | Not reported | 124-2ubuntu1.24.04.3 | Not reported | Not reported | Not reported |
| Cpe | polkitd | cpe | Not reported | 124-2ubuntu1.24.04.3 | Not reported | Not reported | Not reported |
| Cpe | polkitd-pkla | cpe | Not reported | 124-2ubuntu1.24.04.3 | Not reported | Not reported | Not reported |
| Suse | polkit | rpm | linux enterprise server 16.0 | 123-160000.3.1 | Not reported | SUSE-SU-2026:22090-1 | Not reported |
| Suse | polkit | rpm | linux enterprise server for sap applications 16.0 | 123-160000.3.1 | Not reported | SUSE-SU-2026:22090-1 | Not reported |
| Opensuse | polkit | rpm | leap 16.0 | 123-160000.3.1 | Not reported | OPENSUSE-SU-2026:20925-1 | Not reported |
| Suse | polkit | rpm | linux micro 6.2 | 123-160000.3.1 | Not reported | SUSE-SU-2026:22054-1 | Not reported |
| Ubuntu | policykit-1 | deb | 22.04 | 0.105-33ubuntu0.1 | Not reported | UBUNTU-CVE-2026-4897 | Not reported |
| Ubuntu | policykit-1 | deb | 24.04 | 124-2ubuntu1.24.04.3 | Not reported | UBUNTU-CVE-2026-4897 | Not reported |
| Ubuntu | policykit-1 | deb | 25.10 | 126-2ubuntu0.1 | Not reported | UBUNTU-CVE-2026-4897 | Not reported |
| Suse | polkit | rpm | linux enterprise server ltss extended security 12 sp5 | 0.113-5.35.1 | Not reported | SUSE-SU-2026:1425-1 | Not reported |
| Suse | polkit | rpm | linux enterprise micro 5.5 | 121-150500.3.11.1 | Not reported | SUSE-SU-2026:1424-1 | Not reported |
| Suse | polkit | rpm | linux enterprise module for basesystem 15 sp7 | 121-150500.3.11.1 | Not reported | SUSE-SU-2026:1424-1 | Not reported |
| Opensuse | polkit | rpm | leap 15.6 | 121-150500.3.11.1 | Not reported | SUSE-SU-2026:1424-1 | Not reported |
| Suse | polkit | rpm | linux micro 6.1 | 121-slfo.1.1_3.1 | Not reported | SUSE-SU-2026:21032-1 | Not reported |
| Suse | expat | rpm | linux micro 6.2 | 2.7.1-160000.5.1 | Not reported | SUSE-SU-2026:20969-1 | Not reported |
| Suse | polkit | rpm | linux micro 6.0 | 121-4.1 | Not reported | SUSE-SU-2026:20969-1 | Not reported |
Notes
[trixie] policykit-1: Minor issue [bookworm] policykit-1: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [gir1.2-polkit-1.0]Affected
Source package: [policykit-1]
Details (2)
122-3· amd64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
122-3· arm64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
- [libpolkit-agent-1-0]Affected
Source package: [policykit-1]
Details (2)
122-3· amd64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
122-3· arm64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
- [libpolkit-agent-1-dev]Affected
Source package: [policykit-1]
Details (2)
122-3· amd64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
122-3· arm64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
- [libpolkit-gobject-1-0]Affected
Source package: [policykit-1]
Details (2)
122-3· amd64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
122-3· arm64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
- [libpolkit-gobject-1-dev]Affected
Source package: [policykit-1]
Details (2)
122-3· amd64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
122-3· arm64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
- [pkexec]Affected
Source package: [policykit-1]
Details (2)
122-3· amd64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
122-3· arm64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
- [policykit-1]Affected
Details (2)
122-3· amd64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
122-3· arm64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
- [policykit-1-doc]Affected
Source package: [policykit-1]
Details (2)
122-3· all · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
122-3· all · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
- [polkitd]Affected
Source package: [policykit-1]
Details (2)
122-3· amd64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
122-3· arm64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
- [polkitd-javascript]Affected
Source package: [policykit-1]
Details (2)
122-3· amd64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
122-3· arm64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
- [polkitd-pkla]Affected
Source package: [policykit-1]
Details (2)
122-3· amd64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
122-3· arm64 · bookwormAffected
nvd · policykit-1 · debian · bookworm; nvd · policykit-1 · debian · 12
[Debian 13 (Trixie)]
- [gir1.2-polkit-1.0]Affected
Source package: [policykit-1]
Details (2)
126-2· amd64 · trixieAffected
nvd · policykit-1 · debian · 13
126-2· arm64 · trixieAffected
nvd · policykit-1 · debian · 13
- [libpolkit-agent-1-0]Affected
Source package: [policykit-1]
Details (2)
126-2· amd64 · trixieAffected
nvd · policykit-1 · debian · 13
126-2· arm64 · trixieAffected
nvd · policykit-1 · debian · 13
- [libpolkit-agent-1-dev]Affected
Source package: [policykit-1]
Details (2)
126-2· amd64 · trixieAffected
nvd · policykit-1 · debian · 13
126-2· arm64 · trixieAffected
nvd · policykit-1 · debian · 13
- [libpolkit-gobject-1-0]Affected
Source package: [policykit-1]
Details (2)
126-2· amd64 · trixieAffected
nvd · policykit-1 · debian · 13
126-2· arm64 · trixieAffected
nvd · policykit-1 · debian · 13
- [libpolkit-gobject-1-dev]Affected
Source package: [policykit-1]
Details (2)
126-2· amd64 · trixieAffected
nvd · policykit-1 · debian · 13
126-2· arm64 · trixieAffected
nvd · policykit-1 · debian · 13
- [pkexec]Affected
Source package: [policykit-1]
Details (2)
126-2· amd64 · trixieAffected
nvd · policykit-1 · debian · 13
126-2· arm64 · trixieAffected
nvd · policykit-1 · debian · 13
- [policykit-1-doc]Affected
Source package: [policykit-1]
Details (2)
126-2· all · trixieAffected
nvd · policykit-1 · debian · 13
126-2· all · trixieAffected
nvd · policykit-1 · debian · 13
- [polkitd]Affected
Source package: [policykit-1]
Details (2)
126-2· amd64 · trixieAffected
nvd · policykit-1 · debian · 13
126-2· arm64 · trixieAffected
nvd · policykit-1 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_59997.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-4897]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-4897]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1424-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1425-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20969-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:21032-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22054-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22090-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-4897]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:20925-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-4897]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4897.json]
- [https://ubuntu.com/security/notices/USN-8173-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3021.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]