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CVE-2026-93543VulnerabilityPublished

Red Hat Enterprise Linux (libXi, libXrender, ansible-collection-redhat-leapp) und Red Hat Build of Apache Camel for

Affects Bundesamt für Sicherheit in der Informationstechnik ApacheSource GCVE Database

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Authoritative record:CVE-2026-93543· High 7.4

Not known to be exploited · CVSS 7.4 High : upgrade to 1.8.4 soon.

Data as of 29 Oct 2026, 12:04 UTC

CVSS 3.1 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.8.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Sep 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 29 Oct 2026.

What to do

Upgrade libXi and x.org/libxi to 1.8.4.

Affected software

ProductAffectedFixed in
x.orglibXiAffected
  • <1.8.4
Fixed in
  • 1.8.4
X.orgx.org/libxipkg:deb/x.org/libxiOther threatsAffected
  • <1.8.4
Fixed in
  • 1.8.4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released an official fix in libXi version 4.18. Users should apply the update as detailed in Red Hat Advisory RHSA-2026:91056 to remediate this vulnerability. No additional mitigation steps are required beyond applying the vendor-provided patch.

Description

A denial of service vulnerability exists in the libXi runtime library used by Red Hat Enterprise Linux 9. The flaw involves an out-of-bounds read in the XI2 class parser. This issue affects libXi versions prior to 4.18 and version 4.18 itself has been released as a fix. Red Hat has issued an advisory rating the severity as Moderate and provided updated packages to address the vulnerability.

References

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