{"answers":{"affected":"3 open source packages ship an affected version, including maxminddb.","exploited":"There is no known exploitation of GHSA-mj73-j457-8x9q in the wild and no public exploit code.","fix":"Upgrade maxminddb to 0.27.0 or later.","what":"GHSA-mj73-j457-8x9q is a memory corruption vulnerability in maxminddb, published on 28 Nov 2025."},"fix_prompt":"Check this codebase for GHSA-mj73-j457-8x9q and fix it if it is affected.\n\nWhat it is: GHSA-mj73-j457-8x9q is a memory corruption vulnerability in maxminddb, published on 28 Nov 2025. \nExploitation: There is no known exploitation of GHSA-mj73-j457-8x9q in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- maxminddb (crates.io): affected from 0.11.0; fixed in 0.27.0\n- maxminddb (crates.io): affected from 0.11.0; fixed in 0.27.0\n- maxminddb (crates.io): affected from 0.11.0; fixed in 0.27.0\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/GHSA-mj73-j457-8x9q/ (Markdown: https://insights.sbomify.com/GHSA-mj73-j457-8x9q/index.md)","id":"GHSA-mj73-j457-8x9q","markdown":"https://insights.sbomify.com/GHSA-mj73-j457-8x9q/index.md","name":"GHSA-mj73-j457-8x9q","record":{"aliases":["RUSTSEC-2025-0132"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"Rust GeoIP library","requires_auth":"none","summary":"An attacker can cause undefined behavior or crashes by modifying a memory-mapped file, potentially leading to code execution or denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"maxminddb prior to version 0.27 declared `Reader::open_mmap` as safe \ndespite wrapping an inherently unsafe memmap2 operation with no\nextra step done to guarantee safety. This could have led to undefined\nbehaviour if the file were to be modified on disk while the memory map\nwas still active.","ecosystems":["crates.io"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":true,"headline":"`Reader::open_mmap` unsoundly marks unsafe memmap operation as safe","id":"GHSA-mj73-j457-8x9q","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"memory_corruption","year":"2025"},"n_packages":3,"n_references":null,"packages":[{"ecosystem":"crates.io","fixed":["0.27.0"],"introduced":["0.11.0"],"last_affected":[],"package":"maxminddb","purl":null,"source":"GHSA-mj73-j457-8x9q"},{"ecosystem":"crates.io","fixed":["0.27.0"],"introduced":["0.11.0"],"last_affected":[],"package":"maxminddb","purl":"pkg:cargo/maxminddb","source":"GHSA-mj73-j457-8x9q"},{"ecosystem":"crates.io","fixed":["0.27.0"],"introduced":["0.11.0"],"last_affected":[],"package":"maxminddb","purl":"pkg:cargo/maxminddb","source":"RUSTSEC-2025-0132"}],"products":null,"published":"2025-11-28","related":[],"sources":[{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"open","licence":"CC0 1.0","name":"RustSec","prefix":"RUSTSEC"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"An attacker can cause undefined behavior or crashes by modifying a memory-mapped file, potentially leading to code execution or denial of service.","url":"https://insights.sbomify.com/GHSA-mj73-j457-8x9q/"}