{"id":"CVE-2026-43618","summary":"Rsync \u003c 3.4.3 Integer Overflow Information Disclosure","details":"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.","aliases":["GHSA-g37v-g3gj-pmwq"],"modified":"2026-05-28T08:29:16.904024540Z","published":"2026-05-20T00:50:21.416Z","related":["SUSE-SU-2026:2038-1","SUSE-SU-2026:2048-1","SUSE-SU-2026:2083-1","SUSE-SU-2026:21726-1","SUSE-SU-2026:21739-1","openSUSE-SU-2026:10857-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43618.json","cwe_ids":["CWE-125","CWE-190"],"cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43618.json"},{"type":"ADVISORY","url":"https://github.com/RsyncProject/rsync/releases/tag/v3.4.3"},{"type":"ADVISORY","url":"https://github.com/RsyncProject/rsync/security/advisories/GHSA-g37v-g3gj-pmwq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43618"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/rsync-integer-overflow-information-disclosure"},{"type":"PACKAGE","url":"https://github.com/RsyncProject/rsync"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.samba.org/rsync.git/","events":[{"introduced":"0"},{"last_affected":"de3cc03b03be153092f266aa1117b4706947ed07"}],"database_specific":{"cpe":"cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*","source":"CPE_RANGE","extracted_events":[{"introduced":"0"},{"last_affected":"3.4.2"}]}}],"versions":["v3.2.7","v3.4.1","v3.4.2","v3.4.0","v3.3.0","v3.3.0pre1","v3.2.7pre1","v3.2.6","v3.2.5","v3.2.5pre2","v3.2.5pre1","v3.2.4","v3.2.4pre4","v3.2.4pre3","v3.2.4pre2","v3.2.4pre1","v3.2.3","v3.2.3pre1","v3.2.2","v3.2.2pre3","v3.2.2pre2","v3.2.2pre1","v3.2.1","v3.2.1pre1","v3.2.0","v3.2.0pre3","v3.2.0pre2","v3.2.0pre1","v3.1.3","v3.1.3pre1","v3.1.2","v3.1.2pre1","v3.1.1","v3.1.1pre2","v3.1.1pre1","v3.1.0","v3.1.0pre1","v3.0.3","v3.0.3pre3","v3.0.3pre2","v3.0.3pre1","v3.0.2","v3.0.1","v3.0.1pre3","v3.0.1pre2","v3.0.1pre1","v3.0.0","v3.0.0pre10","v3.0.0pre9","v3.0.0pre8","v3.0.0pre7","v3.0.0pre6","v3.0.0pre5","v3.0.0pre4","v3.0.0pre3","v3.0.0pre2","v3.0.0pre1","v2.6.9","v2.6.9pre3","v2.6.9pre2","v2.6.9pre1","v2.6.8","v2.6.8pre1","v2.6.7","v2.6.7pre3","v2.6.7pre2","v2.6.7pre1","v2.6.6pre1","v2.6.5","v2.6.5pre2","v2.6.5pre1","v2.6.4","v2.6.4pre4","v2.6.4pre3","v2.6.4pre2","v2.6.4pre1","v2.6.3","v2.6.3pre2","v2.6.3pre1","v2.6.2","v2.6.2pre1","v2.6.1","v2.6.1pre2","v2.6.1pre1","v2.6.0","v2.6.0pre2","v2.6.0pre1","v2.5.6","v2.5.5","v2.5.5.rc1","v2.5.4","v2.5.4pre1","v2.5.3","v2.5.3pre1","v2.5.2","v2.5.2pre3","v2.5.2pre2","v2.5.2pre1","v2.5.1","v2.5.1pre3","v2.5.1pre2","v2.5.1pre1","v2.5.0","v2.4.7pre4","v2.4.7pre2","mbp_bk_export0","v2.4.6","v2.4.5","v2.4.4","v2.4.3","v2.4.2","v2.4.1","v2.4.0","v2.3.2","v2.3.1","v2.3.0","v2.2.1","v2.2.0","v2.1.1","v2.1.0","v2.0.19","v2.0.18","v2.0.17","v2.0.16","v2.0.15","v2.0.14","v2.0.13","v2.0.12","v2.0.11","v2.0.10","v2.0.9","v2.0.8","v2.0.7","v2.0.6","v2.0.5","v2.0.4","v2.0.3","v2.0.2","v2.0.1","v2.0.0","v1.7.4","v1.7.3","v1.7.2","v1.7.1","v1.7.0","v1.6.9","v1.6.8","v1.6.7","v1.6.6","v1.6.5","v1.6.4"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43618.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/rsyncproject/rsync","events":[{"introduced":"0"},{"fixed":"2c7777aaa62abeb1bca192da345e6e8c685e872a"}],"database_specific":{"source":"REFERENCES"}}],"versions":["v3.2.7","v3.4.1","v3.4.2","v3.4.0","v3.3.0","v3.3.0pre1","v3.2.7pre1","v3.2.6","v3.2.5","v3.2.5pre2","v3.2.5pre1","v3.2.4","v3.2.4pre4","v3.2.4pre3","v3.2.4pre2","v3.2.4pre1","v3.2.3","v3.2.3pre1","v3.2.2","v3.2.2pre3","v3.2.2pre2","v3.2.2pre1","v3.2.1","v3.2.1pre1","v3.2.0","v3.2.0pre3","v3.2.0pre2","v3.2.0pre1","v3.1.3","v3.1.3pre1","v3.1.2","v3.1.2pre1","v3.1.1","v3.1.1pre2","v3.1.1pre1","v3.1.0","v3.1.0pre1","v3.0.3","v3.0.3pre3","v3.0.3pre2","v3.0.3pre1","v3.0.2","v3.0.1","v3.0.1pre3","v3.0.1pre2","v3.0.1pre1","v3.0.0","v3.0.0pre10","v3.0.0pre9","v3.0.0pre8","v3.0.0pre7","v3.0.0pre6","v3.0.0pre5","v3.0.0pre4","v3.0.0pre3","v3.0.0pre2","v3.0.0pre1","v2.6.9","v2.6.9pre3","v2.6.9pre2","v2.6.9pre1","v2.6.8","v2.6.8pre1","v2.6.7","v2.6.7pre3","v2.6.7pre2","v2.6.7pre1","v2.6.6pre1","v2.6.5","v2.6.5pre2","v2.6.5pre1","v2.6.4","v2.6.4pre4","v2.6.4pre3","v2.6.4pre2","v2.6.4pre1","v2.6.3","v2.6.3pre2","v2.6.3pre1","v2.6.2","v2.6.2pre1","v2.6.1","v2.6.1pre2","v2.6.1pre1","v2.6.0","v2.6.0pre2","v2.6.0pre1","v2.5.6","v2.5.5","v2.5.5.rc1","v2.5.4","v2.5.4pre1","v2.5.3","v2.5.3pre1","v2.5.2","v2.5.2pre3","v2.5.2pre2","v2.5.2pre1","v2.5.1","v2.5.1pre3","v2.5.1pre2","v2.5.1pre1","v2.5.0","v2.4.7pre4","v2.4.7pre2","mbp_bk_export0","v2.4.6","v2.4.5","v2.4.4","v2.4.3","v2.4.2","v2.4.1","v2.4.0","v2.3.2","v2.3.1","v2.3.0","v2.2.1","v2.2.0","v2.1.1","v2.1.0","v2.0.19","v2.0.18","v2.0.17","v2.0.16","v2.0.15","v2.0.14","v2.0.13","v2.0.12","v2.0.11","v2.0.10","v2.0.9","v2.0.8","v2.0.7","v2.0.6","v2.0.5","v2.0.4","v2.0.3","v2.0.2","v2.0.1","v2.0.0","v1.7.4","v1.7.3","v1.7.2","v1.7.1","v1.7.0","v1.6.9","v1.6.8","v1.6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