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VulnerabilityPublished Updated

CVE-2026-4897: Red Hat Enterprise Linux 10 · Unthrottled Resource Allocation

Affects Red Hat Enterprise Linux 10Source CVE Database V5

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Not known to be exploited · CVSS 5.5 Medium.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10polkitAffected–Fixed in–
Red Hat Hardened Imagespolkit-mainAffected–Fixed in–
Red Hat Enterprise Linux 6polkitAffected–Fixed in–
Red Hat Enterprise Linux 7polkitAffected–Fixed in–
Red Hat Enterprise Linux 8polkitAffected–Fixed in–
Red Hat Enterprise Linux 9polkitAffected–Fixed in–

AI-suggested

Until an official fix is available, consider restricting local user access to the polkit-agent-helper-1 binary or monitoring for abnormal resource usage related to polkit processes. Do not assume the vulnerability is mitigated without vendor confirmation.

Description

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.

References

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