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CVE-2026-110879VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat build of Quarkus 3.33.4.SP1 release and security update

Affects Red HatSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-110879· Critical 9.8

Not known to be exploited · CVSS 9.8 Critical · fixed in Red Hat package updates : patch Red Hat com.fasterxml.jackson.core:jackson-databind as a priority.

Data as of 29 Oct 2026, 10:09 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (HeroDevs)CVSS 3.19.8
EPSS
1.1% chance of exploitation in 30 days – higher than 67% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.22.4, 2.21.8, 2.18.12 +2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Oct 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 jackson-databind and com.fasterxml.jackson.core/jackson-databind to 2.22.4, 2.21.8 or 2.18.12; jackson-databind and tools.jackson.core/jackson-databind to 3.2.4 or 3.1.8.

Affected software

ProductAffectedFixed in
jackson-databindcom.fasterxml.jackson.core:jackson-databindAffected
  • >=2.22.0 <2.22.4
Fixed in
  • 2.22.4
jackson-databindcom.fasterxml.jackson.core:jackson-databindAffected
  • >=2.19.0 <2.21.8
Fixed in
  • 2.21.8
jackson-databindcom.fasterxml.jackson.core:jackson-databindAffected
  • >=2.10.0 <2.18.12
Fixed in
  • 2.18.12
jackson-databindtools.jackson.core:jackson-databindAffected
  • >=3.2.0 <3.2.4
Fixed in
  • 3.2.4
jackson-databindtools.jackson.core:jackson-databindAffected
  • >=3.0.0 <3.1.8
Fixed in
  • 3.1.8
Mavencom.fasterxml.jackson.core/jackson-databindpkg:maven/com.fasterxml.jackson.core/jackson-databindOther threatsAffected
  • >=2.10.0 <2.18.12
  • >=2.19.0 <2.21.8
  • >=2.22.0 <2.22.4
Fixed in
  • 2.18.12
  • 2.21.8
  • 2.22.4

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

Description

This release of Red Hat build of Quarkus 3.33.4.SP1 includes the following CVE fix: * jackson-databind: Jackson-databind: PolymorphicTypeValidator bypass via generic type arguments and array element types in jackson-databind allows arbitrary class instantiation (incomplete fix for CVE-2026-54512) [quarkus-3.33] (CVE-2026-110879) For more information, see the release notes page listed in the References section.

References

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