Red Hat Security Advisory: Red Hat Lightspeed (formerly Insights) for Runtimes security update
Affects Red Hat jackson-databindSource GCVE Database
Not known to be exploited · CVSS 6.3 Medium · fixed in Ubuntu package updates : update Red Hat jackson-databind when convenient.
Data as of 12 Nov 2026, 23:24 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.18.8
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 23 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 13 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10jackson-databindpkg:deb/ubuntu/jackson-databind?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSjackson-databindpkg:deb/ubuntu/jackson-databind?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 25.10jackson-databindpkg:deb/ubuntu/jackson-databind?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSjackson-databindpkg:deb/ubuntu/jackson-databind?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSjackson-databindpkg:deb/ubuntu/jackson-databind?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 20.04 LTSjackson-databindpkg:deb/ubuntu/jackson-databind?arch=source&distro=focalOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
This vulnerability is fixed in jackson-databind versions 2.18.8, 2.21.4, and 3.1.4. Users should upgrade to one of these versions or later to remediate the issue. No additional vendor advisories indicate alternative mitigations or that no action is required.
Description
A vulnerability in jackson-databind affects versions from 2.0.0 up to but excluding 2.18.8, 2.21.4, and 3.1.4. The issue arises because the JDKFromStringDeserializer class eagerly resolves DNS names during deserialization of InetSocketAddress fields, potentially causing an attacker-controlled DNS query before application validation. The vulnerability is fixed by deferring DNS resolution until an explicit connect call. This flaw has a CVSS score of 7.5 and is rated as medium severity.
References
- access.redhat.com/errata/RHSA-2026:54440 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-50193 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-54512 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-59888 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-68494 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_54440.json (opens in a new tab)
- ubuntu.com/security/CVE-2026-50193 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-50193 (opens in a new tab)
- github.com/FasterXML/jackson-databind/security/advisories/GHSA-3wrr-7qpf-2prh (opens in a new tab)
- github.com/FasterXML/jackson-databind/issues/3447 (opens in a new tab)
- github.com/FasterXML/jackson-databind/commit/a1fa4ae4ecf5cee16da465985f135f3e81816f8c (opens in a new tab)