{"answers":{"affected":"2 open source packages ship an affected version, including hono. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-59896 in the wild and no public exploit code.","fix":"Upgrade hono to 4.12.27 or later.","what":"CVE-2026-59896 is a medium-severity vulnerability in honojs hono, published on 8 Jul 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-2026-59896 and fix it if it is affected.\n\nWhat it is: CVE-2026-59896 is a medium-severity vulnerability in honojs hono, published on 8 Jul 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-2026-59896 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- hono (npm): affected from 4.11.8; fixed in 4.12.27\n- hono (npm): affected from 4.11.8; fixed in 4.12.27\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-2026-59896/ (Markdown: https://insights.sbomify.com/CVE-2026-59896/index.md)","id":"CVE-2026-59896","markdown":"https://insights.sbomify.com/CVE-2026-59896/index.md","name":"CVE-2026-59896","record":{"aliases":["CLEANSTART-2026-BN50669","ECHO-bd5b-948e-fdde","GHSA-hvrm-45r6-mjfj","MINI-22xj-pcqq-w7pc","MINI-2462-jrp2-76hw","MINI-529j-mqm8-gp4m","MINI-6r6f-22p2-5h5x","MINI-7248-p9hv-qf27","MINI-744x-mx66-rf4f","MINI-76g6-29ch-65pp","MINI-frwq-6pf6-87h9","MINI-r93v-pg4w-9mxj","MINI-vc59-frgj-fxq6","MINI-x32q-3472-2cq8"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Hono web framework","requires_auth":"none","summary":"Attackers can access data from other users' requests due to shared context in Hono's JSX server-side rendering.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"hono","vendor":"hono"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"Hono is a Web application framework that provides support for any JavaScript runtime. From 4.11.8 before 4.12.27, hono/jsx did not isolate context values per request during server-side rendering, allowing createContext, useContext, jsxRenderer, or useRequestContext data from a different in-flight request to be used after an await in an async component. This issue is fixed in version 4.12.27.","ecosystems":["npm"],"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":"hono/jsx does not isolate context per request, leading to cross-request data disclosure","id":"CVE-2026-59896","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"Hono: API Gateway v1 adapter can drop a distinct repeated request header value during de-duplication","id":"CVE-2026-59897"},"packages":[{"ecosystem":"npm","fixed":["4.12.27"],"introduced":["4.11.8"],"last_affected":[],"package":"hono","purl":null,"source":"GHSA-hvrm-45r6-mjfj"},{"ecosystem":"npm","fixed":["4.12.27"],"introduced":["4.11.8"],"last_affected":[],"package":"hono","purl":"pkg:npm/hono","source":"GHSA-hvrm-45r6-mjfj"}],"prev":{"headline":"Hono: Server-Side XSS via JSX Escaping Bypass in cx() Utility","id":"CVE-2026-59895"},"products":["hono"],"published":"2026-07-08","related":[{"cvss_score":8.2,"headline":"Hono is Vulnerable to Authentication Bypass by IP Spoofing in AWS Lambda ALB conninfo","id":"CVE-2026-27700","kev_date_added":null,"published":"2026-02-25"},{"cvss_score":8.2,"headline":"JWT Algorithm Confusion via Unsafe Default (HS256) in Hono JWT Middleware Allows Token Forgery and Auth Bypass","id":"CVE-2026-22817","kev_date_added":null,"published":"2026-01-13"},{"cvss_score":8.2,"headline":"JWT algorithm confusion in Hono JWK Auth Middleware when JWK lacks \"alg\" (untrusted header.alg fallback)","id":"CVE-2026-22818","kev_date_added":null,"published":"2026-01-13"},{"cvss_score":8.1,"headline":"Hono Improperly Authorizes JWT Audience Validation","id":"CVE-2025-62610","kev_date_added":null,"published":"2025-10-22"},{"cvss_score":7.5,"headline":"Hono: Arbitrary file access via serveStatic vulnerability","id":"CVE-2026-29045","kev_date_added":null,"published":"2026-03-04"},{"cvss_score":7.5,"headline":"Hono contains a flaw in URL path parsing, potentially leading to path confusion","id":"CVE-2025-58362","kev_date_added":null,"published":"2025-09-04"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-08","vendors":["honojs"]},"summary":"Attackers can access data from other users' requests due to shared context in Hono's JSX server-side rendering.","url":"https://insights.sbomify.com/CVE-2026-59896/"}