{"answers":{"affected":"6 open source packages ship an affected version, including com.fasterxml.jackson.core:jackson-databind and tools.jackson.core:jackson-databind. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-54516 in the wild and no public exploit code.","fix":"Upgrade com.fasterxml.jackson.core:jackson-databind to a fixed version for your release line: 2.21.4 or 3.1.4.","what":"CVE-2026-54516 is a medium-severity unsafe deserialization vulnerability in Fasterxml Jackson-Databind, published on 23 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-54516 and fix it if it is affected.\n\nWhat it is: CVE-2026-54516 is a medium-severity unsafe deserialization vulnerability in Fasterxml Jackson-Databind, published on 23 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-54516 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.21.0; fixed in 2.21.4\n- com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.21.0; fixed in 2.21.4\n- com.fasterxml.jackson.core:jackson-databind (Maven): affected from 3.0.0; fixed in 3.1.4\n- com.fasterxml.jackson.core:jackson-databind (Maven): affected from 3.0.0; fixed in 3.1.4\n- tools.jackson.core:jackson-databind (Maven): affected from 3.0.0; fixed in 3.1.4\n- tools.jackson.core:jackson-databind (Maven): affected from 3.0.0; fixed in 3.1.4\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-54516/ (Markdown: https://insights.sbomify.com/CVE-2026-54516/index.md)","id":"CVE-2026-54516","markdown":"https://insights.sbomify.com/CVE-2026-54516/index.md","name":"CVE-2026-54516","record":{"aliases":["CLEANSTART-2026-CG97274","CLEANSTART-2026-FI31779","CLEANSTART-2026-II13133","CLEANSTART-2026-PG17779","CLEANSTART-2026-ZG74825","DEBIAN-CVE-2026-54516","ECHO-5bd4-f087-1a66","GHSA-9fxm-vc8v-hj55","MINI-2p5r-p52m-55gh","MINI-3g6x-2mr2-67jx","MINI-3rjq-v6jm-428p","MINI-4hr9-8f37-w434","MINI-4hwc-cggm-r4px","MINI-4pf3-7hj3-m4h2","MINI-4x8v-8qr3-w846","MINI-55w2-m5q9-vgfv","MINI-6xr4-mg4q-mq2f","MINI-8c68-jj46-8xcq","MINI-97p6-4mh6-g7mq","MINI-97w3-h278-xm54","MINI-99w2-w55j-2cgq","MINI-9v9r-w6hr-j2cp","MINI-fh9x-7p96-q898","MINI-fr74-v2f5-xr5g","MINI-g849-857m-73w6","MINI-gw92-v3x2-jmmf","MINI-h7cg-77fr-x789","MINI-h9gv-hf6m-34qw","MINI-j2q3-34v8-wjcj","MINI-jj2x-xf23-vg9f","MINI-m99x-8g46-fw77","MINI-mhgg-wp3q-fcxh","MINI-mmx9-vf4p-r6hh","MINI-mwp5-57hp-q962","MINI-p4qf-m7pw-2c9p","MINI-q2gw-2855-v25h","MINI-qf4v-fp42-cjp6","MINI-r63m-pm7p-645g","MINI-rhwq-4mv9-j7h3","MINI-rjx7-vm6j-qw5f","MINI-rm3h-w326-jqpw","MINI-v982-cjc3-x433","MINI-vgp4-v7mr-qc68","MINI-vq6g-29qw-6cv9","MINI-vvqx-825v-rj82","MINI-wj72-857r-fwq6","MINI-xr4m-cqmc-v6c9","ROOT-APP-MAVEN-CVE-2026-54516","UBUNTU-CVE-2026-54516"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Java JSON library","requires_auth":"none","summary":"Attackers can bypass @JsonIgnore annotations to modify private fields during JSON deserialization in jackson-databind.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"jackson-databind","vendor":"fasterxml"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-915","name":"Improperly Controlled Modification of Dynamically-Determined Object Attributes"}],"description":"jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, POJOPropertiesCollector._renameProperties() allows a property with @JsonProperty(\"renamed\") on the getter and @JsonIgnore on the setter to be renamed rather than dropped. With MapperFeature.INFER_PROPERTY_MUTATORS enabled (default), the private backing field is retained; during deserialization BeanDeserializerFactory.addBeanProps() sees hasField()==true, builds a FieldProperty, and makes the backing field writable. An attacker supplying the renamed JSON key writes the backing field directly, bypassing the @JsonIgnore on the setter. This vulnerability is fixed in 3.1.4.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"jackson-databind: Renamed @JsonIgnore'd setters can deserialize via private fields","id":"CVE-2026-54516","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"fasterxml:jackson-databind","products":["fasterxml:jackson-databind"],"type":"deserialization","year":"2026"},"n_packages":6,"n_references":5,"next":{"headline":"jackson-databind: @JsonView bypass for setterless creator properties","id":"CVE-2026-54517"},"packages":[{"ecosystem":"Maven","fixed":["2.21.4"],"introduced":["2.21.0"],"last_affected":[],"package":"com.fasterxml.jackson.core:jackson-databind","purl":null,"source":"GHSA-9fxm-vc8v-hj55"},{"ecosystem":"Maven","fixed":["2.21.4"],"introduced":["2.21.0"],"last_affected":[],"package":"com.fasterxml.jackson.core:jackson-databind","purl":"pkg:maven/com.fasterxml.jackson.core/jackson-databind","source":"GHSA-9fxm-vc8v-hj55"},{"ecosystem":"Maven","fixed":["3.1.4"],"introduced":["3.0.0"],"last_affected":[],"package":"com.fasterxml.jackson.core:jackson-databind","purl":null,"source":"GHSA-9fxm-vc8v-hj55"},{"ecosystem":"Maven","fixed":["3.1.4"],"introduced":["3.0.0"],"last_affected":[],"package":"com.fasterxml.jackson.core:jackson-databind","purl":"pkg:maven/com.fasterxml.jackson.core/jackson-databind","source":"GHSA-9fxm-vc8v-hj55"},{"ecosystem":"Maven","fixed":["3.1.4"],"introduced":["3.0.0"],"last_affected":[],"package":"tools.jackson.core:jackson-databind","purl":null,"source":"GHSA-9fxm-vc8v-hj55"},{"ecosystem":"Maven","fixed":["3.1.4"],"introduced":["3.0.0"],"last_affected":[],"package":"tools.jackson.core:jackson-databind","purl":"pkg:maven/tools.jackson.core/jackson-databind","source":"GHSA-9fxm-vc8v-hj55"}],"prev":{"headline":"jackson-databind: Case-insensitive deserialization bypasses per-property @JsonIgnoreProperties","id":"CVE-2026-54515"},"products":["jackson-databind"],"published":"2026-06-23","related":[{"cvss_score":9.8,"headline":"Deserialization of Untrusted Data in jackson-databind","id":"CVE-2018-11307","kev_date_added":null,"published":"2019-07-09"},{"cvss_score":8.1,"headline":"jackson-databind: PolymorphicTypeValidator bypass via generic type parameters allows arbitrary class instantiation","id":"CVE-2026-54512","kev_date_added":null,"published":"2026-06-23"},{"cvss_score":8.1,"headline":"jackson-databind: Array subtype allowlist bypass in BasicPolymorphicTypeValidator (allowIfSubTypeIsArray)","id":"CVE-2026-54513","kev_date_added":null,"published":"2026-06-23"},{"cvss_score":8.1,"headline":"Deserialization of untrusted data in Jackson Databind","id":"CVE-2020-14060","kev_date_added":null,"published":"2020-06-14"},{"cvss_score":7.5,"headline":"jackson-databind possible Denial of Service if using JDK serialization to serialize JsonNode","id":"CVE-2021-46877","kev_date_added":null,"published":"2023-03-18"},{"cvss_score":7.5,"headline":"Polymorphic deserialization of malicious object in jackson-databind","id":"CVE-2019-14893","kev_date_added":null,"published":"2020-03-02"},{"cvss_score":6.5,"headline":"jackson-databind: @JsonView bypass for unwrapped creator parameters in jackson-databind","id":"CVE-2026-54518","kev_date_added":null,"published":"2026-06-23"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-24","vendors":["FasterXML"]},"summary":"Attackers can bypass @JsonIgnore annotations to modify private fields during JSON deserialization in jackson-databind.","url":"https://insights.sbomify.com/CVE-2026-54516/"}