{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-43618 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-43618 is a medium-severity vulnerability in RsyncProject rsync, published on 20 May 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-43618 and fix it if it is affected.\n\nWhat it is: CVE-2026-43618 is a medium-severity vulnerability in RsyncProject rsync, published on 20 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-43618 in the wild and no public exploit code.\n\nAffected product: RsyncProject rsync. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-43618/ (Markdown: https://insights.sbomify.com/CVE-2026-43618/index.md)","id":"CVE-2026-43618","markdown":"https://insights.sbomify.com/CVE-2026-43618/index.md","name":"CVE-2026-43618","record":{"aliases":["ALPINE-CVE-2026-43618","AZL-86988","BELL-CVE-2026-43618","CLSA-2026-1779368965","CLSA-2026-1779369352","CLSA-2026-1779369622","CLSA-2026-1779369649","CLSA-2026-1779369849","CLSA-2026-1779438231","CLSA-2026-1779455173","CLSA-2026-1779466465","CLSA-2026-1779711183","CLSA-2026-1779711647","CLSA-2026-1779712103","CVE-2026-44508","DEBIAN-CVE-2026-43618","ECHO-2e68-a24f-d392","GHSA-88m5-cm5m-2596","GHSA-g37v-g3gj-pmwq","JLSEC-2026-629","UBUNTU-CVE-2026-43618"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"File synchronization tool","requires_auth":"low_privilege","summary":"A malicious sender can trigger an integer overflow in rsync to disclose process memory, aiding ASLR bypass and further exploitation.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"rsync","vendor":"samba"}],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"},{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"Rsync version 3.4.2 and prior contain an integer overflow vulnerability in the compressed-token decoder where a 32-bit signed counter is not checked for overflow, allowing a malicious sender to trigger an overflow that causes the receiver process to read and return data from outside the intended buffer bounds. Attackers can exploit this vulnerability to disclose process memory contents including environment variables, passwords, heap and stack data, and library memory pointers, significantly reducing ASLR effectiveness and facilitating further exploitation.","ecosystems":[],"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":"Rsync \u003c 3.4.3 Integer Overflow Information Disclosure","id":"CVE-2026-43618","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Rsync \u003c 3.4.3 Symlink Race Condition via Path-Based Syscalls","id":"CVE-2026-43619"},"packages":[],"prev":{"headline":"Rsync \u003c 3.4.3 Authorization Bypass via Hostname Resolution","id":"CVE-2026-43617"},"products":["rsync"],"published":"2026-05-20","related":[{"cvss_score":9.8,"headline":"Security feature bypass in n/a","id":"CVE-2017-15994","kev_date_added":null,"published":"2017-10-29"},{"cvss_score":9.1,"headline":"rsync \u003c 3.5.0 Daemon IP Spoofing via PROXY Protocol Header","id":"CVE-2026-53791","kev_date_added":null,"published":"2026-08-13"},{"cvss_score":8.8,"headline":"rsync 3.2.5 \u003c 3.5.0 Heap Out-of-Bounds Write via files-from Entry","id":"CVE-2026-70461","kev_date_added":null,"published":"2026-08-13"},{"cvss_score":8.7,"headline":"rsync 3.4.2 \u003c 3.5.0 DoS via --zt Zstandard Compression Thread Exhaustion","id":"CVE-2026-70455","kev_date_added":null,"published":"2026-08-13"},{"cvss_score":8.6,"headline":"rsync 3.1.0 \u003c 3.5.0 Authorization Bypass via auth users Directive Parsing","id":"CVE-2026-70463","kev_date_added":null,"published":"2026-08-13"},{"cvss_score":8.5,"headline":"rsync \u003c 3.5.0 Symlink Following Arbitrary File Overwrite","id":"CVE-2026-53803","kev_date_added":null,"published":"2026-08-13"},{"cvss_score":8.4,"headline":"rsync \u003c 3.5.0 Path Traversal via Symlink Module Root","id":"CVE-2026-53784","kev_date_added":null,"published":"2026-08-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"total"},"state":"PUBLISHED","updated":"2026-09-01","vendors":["RsyncProject"]},"summary":"A malicious sender can trigger an integer overflow in rsync to disclose process memory, aiding ASLR bypass and further exploitation.","url":"https://insights.sbomify.com/CVE-2026-43618/"}