{"answers":{"affected":"2 open source packages ship an affected version, including com.foxinmy:weixin4j-base.","exploited":"There is no known exploitation of CVE-2026-24819 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-24819 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-24819 is a medium-severity denial of service vulnerability in foxinmy weixin4j, published on 27 Jan 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-2026-24819 and fix it if it is affected.\n\nWhat it is: CVE-2026-24819 is a medium-severity denial of service vulnerability in foxinmy weixin4j, published on 27 Jan 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-2026-24819 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- com.foxinmy:weixin4j-base (Maven): affected all versions up to 1.10.2; no fix listed\n- com.foxinmy:weixin4j-base (Maven): affected all versions up to 1.10.2; no fix listed\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-2026-24819/ (Markdown: https://insights.sbomify.com/CVE-2026-24819/index.md)","id":"CVE-2026-24819","markdown":"https://insights.sbomify.com/CVE-2026-24819/index.md","name":"CVE-2026-24819","record":{"aliases":["GHSA-444m-px7r-qpvv"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Java WeChat SDK","requires_auth":"none","summary":"An out-of-memory vulnerability in the weixin4j library allows attackers to cause a denial of service through improper memory allocation.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GovTech CSG","cpe":[],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/R:A/V:D/RE:M/U:Amber","version":"4.0"},"cwes":[{"id":"CWE-1325","name":"Improperly Controlled Sequential Memory Allocation"}],"description":"Improperly Controlled Sequential Memory Allocation vulnerability in foxinmy weixin4j (weixin4j-base/src/main/java/com/foxinmy/weixin4j/util modules). This vulnerability is associated with program files CharArrayBuffer.Java, ClassUtil.Java.\n\nThis issue affects weixin4j.","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":false,"headline":"An out-of-memory (OOM) issue in foxinmy/weixin4j","id":"CVE-2026-24819","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"A stack overflow vulnerability in turanszkij/WickedEngine","id":"CVE-2026-24820"},"packages":[{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["1.10.2"],"package":"com.foxinmy:weixin4j-base","purl":null,"source":"GHSA-444m-px7r-qpvv"},{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["1.10.2"],"package":"com.foxinmy:weixin4j-base","purl":"pkg:maven/com.foxinmy/weixin4j-base","source":"GHSA-444m-px7r-qpvv"}],"prev":{"headline":"A heap-based buffer over-read that might affect a system that compiles untrusted Lua code in praydog/UEVR","id":"CVE-2026-24818"},"products":["weixin4j"],"published":"2026-01-27","related":[],"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":"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":"2026-01-27","vendors":["foxinmy"]},"summary":"An out-of-memory vulnerability in the weixin4j library allows attackers to cause a denial of service through improper memory allocation.","url":"https://insights.sbomify.com/CVE-2026-24819/"}