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Vulnerabilities ›

CVE-2026-4897

Medium

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

CWE-770 — Weakness Type

                    Published: Mar 26, 2026                      ·  Modified: Mar 29, 2026                      ·  Source: NVD                

CVSS v3

5.5

🔗 NVD Official

📄 Description (English)

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.

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Queued for AI Analysis

This CVE will be auto-analyzed on the next cron run.

🔗 References & Sources 2

https://access.redhat.com/security/cve/CVE-2026-4897

secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2451739

secalert@redhat.com

📊 CVSS Score

5.5

/ 10.0 — Medium

📊 CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorL — Low / Local

Attack ComplexityL — Low / Local

Privileges RequiredL — Low / Local

User InteractionN — None / Network

ScopeU — Unchanged

ConfidentialityN — None / Network

IntegrityN — None / Network

AvailabilityH — High

📋 Quick Facts

Severity Medium

CVSS Score5.5

CWECWE-770

EPSS0.01%

Exploit No

Patch ✗ No

Published 2026-03-26

Source Feed nvd

🏷️ Tags

CWE-770

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

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