CVE-2026-50193: medium-severity vulnerability in FasterXML jackson-databind
jackson-databind: Deeply nested JsonNode throws StackOverflowError for toString()
Published · Updated
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.6%
exploitation probability
0.6%top 52% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected products
FasterXML · jackson-databindRelated CVEs — FasterXML jackson-databind
In the same product, most dangerous first.
CVE-2017-7525—CVE-2017-7525EPSS 37.7%CVE-2017-15095—CVE-2017-15095EPSS 8.4%CVE-2026-54513HIGHjackson-databind: Array subtype allowlist bypass in BasicPolymorphicTypeValidator (allowIfSubTypeIsArray)EPSS 1.2%CVE-2026-54512HIGHjackson-databind: PolymorphicTypeValidator bypass via generic type parameters allows arbitrary class instantiationEPSS 1.0%CVE-2026-83557MEDIUMjackson-databind omits java.lang.Comparable from DefaultBaseTypeLimitingValidator's unsafe base typesEPSS 0.7%CVE-2026-68497HIGHjackson-databind: unbounded numeric parse in Duration and XMLGregorianCalendar deserialization allows CPU denial of serviceEPSS 0.6%