{"id":"CVE-2026-112063","title":"libstrophe through 0.14.0 Stack-Based Buffer Overflow via SCRAM Salt in SCRAM_Hi","summary":"libstrophe through 0.14.0 contains a stack-based buffer overflow vulnerability in SCRAM_Hi that allows malicious XMPP servers to overflow a 128-byte stack buffer by sending an oversized SCRAM salt. Attackers can send a server-first-messa…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H","cvssSource":"cna","cwe":["CWE-121"],"vendor":"strophe","product":"libstrophe","affected":["libstrophe <= 0.14.0"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T12:19:52.787Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112063","references":[{"url":"https://hackmd.io/@haindpwn/libstrophe-scram-salt-stack-overflow"},{"url":"https://github.com/strophe/libstrophe/blob/0.14.0/src/scram.c"},{"url":"https://github.com/strophe/libstrophe/blob/0.14.0/src/sasl.c"},{"url":"https://www.vulncheck.com/advisories/libstrophe-through-0.14.0-stack-based-buffer-overflow-via-scram-salt-in-scram-hi","label":"VulnCheck Advisory: libstrophe through 0.14.0 Stack-Based Buffer Overflow via SCRAM Salt in SCRAM_Hi"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T12:41:54.056Z","slug":"CVE-2026-112063","body":"## Overview\n\nlibstrophe through 0.14.0 contains a stack-based buffer overflow vulnerability in SCRAM_Hi that allows malicious XMPP servers to overflow a 128-byte stack buffer by sending an oversized SCRAM salt. Attackers can send a server-first-message whose s= attribute decodes to more than 124 bytes, aborting the client or overwriting stack memory in NDEBUG builds.\n\n## Affected\n\n- `libstrophe <= 0.14.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":32,"depthScoreParts":{"impact":32.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}