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CVE-2026-0989VulnerabilityPublished Updated

CVE-2026-0989: Red Hat Hardened Images · Uncontrolled Recursion

Affects Red Hat Hardened ImagesSource CVE Database V5

0

Not known to be exploited · CVSS 3.7 Low.

Data as of 26 Oct 2026, 07:57 UTC

CVSS 3.1 base score
3.7Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
Red HatRed Hat Hardened ImagesAffected–Fixed in–
Red HatRed Hat Enterprise Linux 10Affected–Fixed in–
Red HatRed Hat Enterprise Linux 6Affected–Fixed in–
Red HatRed Hat Enterprise Linux 7Affected–Fixed in–
Red HatRed Hat Enterprise Linux 8Affected–Fixed in–
Red HatRed Hat Enterprise Linux 9Affected–Fixed in–
Red HatRed Hat JBoss Core ServicesAffected–Fixed in–
Red HatRed Hat OpenShift Container Platform 4Affected–Fixed in–

AI-suggested

Red Hat has released updated libxml2 packages (libxml2-2.15.2-0.3.hum1 and related RPMs) that address this vulnerability. Applying these official updates to Red Hat Hardened Images will remediate the issue. Refer to the Red Hat advisory RHSA-2026:7519 for detailed update instructions. No additional mitigation is required beyond applying the vendor-provided fix.

Description

A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are handled. The parser does not enforce a limit on inclusion depth when resolving nested <include> directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This may lead to stack exhaustion and application crashes, creating a denial-of-service risk.

References

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