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CVE-2026-4897VulnerabilityPublished Updated

Unthrottled Resource Allocation

Source GCVE Database

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Authoritative record:CVE-2026-4897· Medium 5.5

Not known to be exploited · CVSS 5.5 Medium : update Red Hat Enterprise Linux 10 when convenient.

Data as of 11 Nov 2026, 01:51 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.15.5
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 10 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10polkitAffected–Fixed in–
Red Hat Enterprise Linux 9polkitAffected–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–

AI-suggested

Red Hat has released official security updates that fix this vulnerability. Users should apply the updated polkit packages provided in Red Hat Enterprise Linux 10 and Red Hat Hardened Images RPMs as detailed in advisories RHSA-2026:59997 and RHSA-2026:66287. Applying these updates mitigates the risk by correcting the unbounded input handling. No additional action is required beyond applying the vendor-provided patches.

Description

A vulnerability in polkit allows a local user to cause a denial of service by providing excessively long input to the polkit-agent-helper-1 setuid binary via standard input. This unbounded input can lead to an out-of-memory condition, disrupting system availability. The issue is tracked as CVE-2026-4897 with a medium severity rating and a CVSS score of 5.5. Red Hat has released security updates addressing this flaw in Red Hat Enterprise Linux 10 and Red Hat Hardened Images RPMs.

References

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