Amazon Linux 2023 Security Advisory: ALAS2023-2026-1949
Advisory Released Date: 2026-07-20
Advisory Updated Date: 2026-07-20
Severity:
Medium
Issue Overview:
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.13.0 until 2.14.0, a potential Denial-of-Service exists when attacker sends deeply nested JSON if (and only if) the service reads deeply nested (1000s of levels) JSON as JsonNode (ObjectMapper.readTree()) and writes out same (or modifided) node using JsonNode.toString(). This can consume significant amount of resources with concurrent relatively small requests (1000 nested arrays is 2kB). This vulnerability is fixed in 2.14.0. (CVE-2026-50193)
Affected Packages:
jackson-databind
Issue Correction:
Run dnf update jackson-databind --releasever 2023.12.20260720 or dnf update --advisory ALAS2023-2026-1949 --releasever 2023.12.20260720 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
New Packages:
noarch:
jackson-databind-2.14.2-1.amzn2023.0.1.noarch
src:
jackson-databind-2.14.2-1.amzn2023.0.1.src