# CVE-2026-19032: jackson-databind resolves attacker-controlled URI schemes when deserializing java.nio.file.Path > Attackers can trigger arbitrary FileSystemProvider loading and potential code execution via crafted JSON in jackson-databind Path deserialization. - **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 1 Sep 2026 - **Updated:** 1 Sep 2026 - **Also known as:** CLEANSTART-2026-AD83937, CLEANSTART-2026-BQ73969, CLEANSTART-2026-CZ82044, CLEANSTART-2026-DG88298, CLEANSTART-2026-FJ26239, CLEANSTART-2026-FO52414, CLEANSTART-2026-GI33079, CLEANSTART-2026-JL61166, CLEANSTART-2026-JU97425, CLEANSTART-2026-JZ68487, CLEANSTART-2026-KA44549, CLEANSTART-2026-KJ79490, CLEANSTART-2026-QM61643, CLEANSTART-2026-UI85018, DEBIAN-CVE-2026-19032, ECHO-99e9-b9d1-fc14, GHSA-wjgm-6hv5-3cvf, MINI-2392-6r7p-g9cg, MINI-24c2-8qp8-prgh, MINI-257m-6xqw-mm4w, MINI-25j2-vq58-45qg, MINI-279v-2xm2-wv8v, MINI-2j8f-76h9-cv9q, MINI-2jcx-5v5h-r4q6, MINI-2pfq-9vqf-r3r7, MINI-33rv-v8q3-rg98, MINI-36hx-52wh-mm69, MINI-3f7g-772v-j9rg, MINI-3fq4-cfqf-4j58, MINI-3qff-cfqf-4qr8, MINI-3r5h-92hf-xrwq, MINI-3x77-9vwp-rvm8, MINI-42vh-67j8-g3xx, MINI-49h6-vr33-8g76, MINI-4crc-xv9r-689j, MINI-4jc9-6mrv-hh59, MINI-4p6c-wf3h-5x93, MINI-4w79-cjm3-9764, MINI-4xwg-f589-q69v, MINI-54rg-r9rq-h2c9, MINI-56cj-vwhj-mgxg, MINI-57cx-f57x-7hf7, MINI-57j5-f4w4-g8w3, MINI-5hgg-hj52-44jg, MINI-5jm4-rjv8-gvjv, MINI-5r7j-325c-gw9h, MINI-655m-rx83-x849, MINI-6c94-hmpv-w34g, MINI-6hpm-j3pq-63g9, MINI-76pg-jjfg-xvx7, MINI-7mcq-6g68-gfg9, MINI-7pmq-m24r-rqmj, MINI-82mv-m8vf-85fj, MINI-83mp-9qg2-jwx8, MINI-8633-rh9x-463x, MINI-86qx-33cp-4q76, MINI-896v-rqvr-j6q6, MINI-8jhx-prmm-3766, MINI-8pm7-5hv4-3qpw, MINI-8vp9-9r79-vx8f, MINI-8w6f-v2x4-j6p8, MINI-9425-g433-pvm7, MINI-97w8-8q2c-6fpg, MINI-9q6w-w784-pjj8, MINI-c5qc-gj6x-pmxg, MINI-c8g2-wpm8-m8j6, MINI-chwf-wwqr-j6jj, MINI-f3m8-59p7-3rv3, MINI-f6p9-p8jj-84cr, MINI-f8g6-4m97-x6mh, MINI-fgrv-2rrx-4wq3, MINI-fv88-5jm4-89rv, MINI-g4x3-5pm2-7597, MINI-g7xp-8gg8-qx22, MINI-g85h-4mj5-5hv9, MINI-gq5p-c9gr-52g7, MINI-gq93-ch75-55qm, MINI-gv9g-43pf-xh2r, MINI-h249-65hv-8r3m, MINI-h6w9-m5rc-v73w, MINI-h84v-qq9h-rcjx, MINI-hgp2-m9r9-cvx9, MINI-hm6c-c993-c44m, MINI-jh4f-w3jx-5xcq, MINI-jjv9-864g-cpm5, MINI-jmq5-f66j-r8h7, MINI-jpq7-77qr-rf3x, MINI-jrjv-3vgc-jf48, MINI-m29h-mjj2-f555, MINI-m2f9-hwvq-r6gr, MINI-m4x9-wjc8-f448, MINI-m675-p2ph-q3jq, MINI-m842-xg4m-gfj9, MINI-m8g2-v528-wp3h, MINI-mcwm-xrr3-cpv7, MINI-mhr9-gjv6-5r69, MINI-mhx4-xffr-wrjr, MINI-p274-hf42-5r7c, MINI-p27v-ch7h-2gm5, MINI-p2jv-q4vh-f2j9, MINI-p8f2-q26v-742x, MINI-p8fr-5qfm-rpc2, MINI-pch4-rqv3-mvm4, MINI-pcrp-jvqr-5q6p, MINI-phwh-jfh8-v4cg, MINI-pqvh-hr89-mgfq, MINI-pqx2-g3hm-j3j8, MINI-qjx6-rr4x-558q, MINI-qqr2-rpm2-v9ch, MINI-qvw6-888w-vjjq, MINI-r843-3r47-7w2q, MINI-rf8x-qx66-72j6, MINI-rg33-rq85-r7x6, MINI-rmf5-8hgr-27q3, MINI-rwqj-qhrm-7hgp, MINI-v86h-4jf8-fm6q, MINI-vvr4-p4fv-gw2j, MINI-w3rm-8q52-4wmh, MINI-w83x-qw9g-fgcc, MINI-wq8m-958c-wm42, MINI-wxjx-w7jg-95rv, MINI-x394-rxgv-6f4m, MINI-x4fx-xj98-g47w, MINI-x8m8-q94w-375h, MINI-xc7p-q77x-mxr3, MINI-xjxg-cxmq-cjpc, MINI-xrgq-639w-4jg9, MINI-xv92-7w9p-vg6g, MINI-xwxm-jxm5-2h24, ROOT-APP-MAVEN-CVE-2026-19032, UBUNTU-CVE-2026-19032 ## What is CVE-2026-19032? CVE-2026-19032 is a medium-severity unsafe deserialization vulnerability in FasterXML jackson-databind, published on 1 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description jackson-databind's deserializer for java.nio.file.Path resolves an attacker-supplied URI without restricting the URI scheme. In JDKFromStringDeserializer.NioPathHelper.deserialize, a string bound from untrusted JSON is passed to new URI(value) and then to Path.of(uri). When that throws FileSystemNotFoundException, the code enumerates ServiceLoader and calls provider.getPath(uri) on the first provider whose scheme matches the attacker-chosen scheme. Untrusted JSON can therefore select and drive an arbitrary registered FileSystemProvider during readValue under a default JsonMapper, and forces provider class loading at the same time. With only the JDK built-in providers (file, jar/zipfs) present, the resolved path is inert and no mount or network I/O occurs; further impact requires a side-effecting third-party FileSystemProvider on the classpath. This affects com.fasterxml.jackson.core:jackson-databind from 2.8.0 before 2.18.10, from 2.19.0 before 2.21.6, and from 2.22.0 before 2.22.2, and tools.jackson.core:jackson-databind from 3.0.0 before 3.1.6 and from 3.2.0 before 3.2.2. Users should upgrade to 2.18.10, 2.21.6, 2.22.2, 3.1.6, or 3.2.2. Binding java.nio.file.Path from untrusted JSON should be avoided regardless of version. Weakness: CWE-610 (Externally Controlled Reference to a Resource in Another Sphere), CWE-470 (Use of Externally-Controlled Input to Select Classes or Code) ## Which versions are affected by CVE-2026-19032? 10 open source packages ship an affected version, including com.fasterxml.jackson.core:jackson-databind and tools.jackson.core:jackson-databind. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `com.fasterxml.jackson.core:jackson-databind` | Maven | From 2.19.0 | 2.21.6 | | `com.fasterxml.jackson.core:jackson-databind` | Maven | From 2.19.0 | 2.21.6 | | `com.fasterxml.jackson.core:jackson-databind` | Maven | From 2.22.0 | 2.22.2 | | `com.fasterxml.jackson.core:jackson-databind` | Maven | From 2.22.0 | 2.22.2 | | `com.fasterxml.jackson.core:jackson-databind` | Maven | From 2.8.0 | 2.18.10 | | `com.fasterxml.jackson.core:jackson-databind` | Maven | From 2.8.0 | 2.18.10 | | `tools.jackson.core:jackson-databind` | Maven | From 3.0.0 | 3.1.6 | | `tools.jackson.core:jackson-databind` | Maven | From 3.0.0 | 3.1.6 | | `tools.jackson.core:jackson-databind` | Maven | From 3.2.0 | 3.2.2 | | `tools.jackson.core:jackson-databind` | Maven | From 3.2.0 | 3.2.2 | ## How do I fix CVE-2026-19032? Upgrade com.fasterxml.jackson.core:jackson-databind to a fixed version for your release line: 2.21.6, 2.22.2 or 2.18.10. ## Is CVE-2026-19032 being exploited? It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19032 exists. ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2026-19032 and fix it if it is affected. What it is: CVE-2026-19032 is a medium-severity unsafe deserialization vulnerability in FasterXML jackson-databind, published on 1 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19032 exists. Affected packages and fixed versions: - com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.19.0; fixed in 2.21.6 - com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.19.0; fixed in 2.21.6 - com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.22.0; fixed in 2.22.2 - com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.22.0; fixed in 2.22.2 - com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.8.0; fixed in 2.18.10 - com.fasterxml.jackson.core:jackson-databind (Maven): affected from 2.8.0; fixed in 2.18.10 - tools.jackson.core:jackson-databind (Maven): affected from 3.0.0; fixed in 3.1.6 - tools.jackson.core:jackson-databind (Maven): affected from 3.0.0; fixed in 3.1.6 - tools.jackson.core:jackson-databind (Maven): affected from 3.2.0; fixed in 3.2.2 - tools.jackson.core:jackson-databind (Maven): affected from 3.2.0; fixed in 3.2.2 Task: 1. 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. 2. 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. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2026-19032/ (Markdown: https://insights.sbomify.com/CVE-2026-19032/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-19032 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-19032 - OSV: https://osv.dev/vulnerability/CVE-2026-19032 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-19032/ Summaries are generated and may contain mistakes; the official description above is the record.