CVE-2026-112063
libstrophe through 0.14.0 Stack-Based Buffer Overflow via SCRAM Salt in SCRAM_Hi
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
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-message whose s= attribute decodes to more than 124 bytes, aborting the client or overwriting stack memory in NDEBUG builds.
| CWE | CWE-121 |
| Vendor | strophe |
| Product | libstrophe |
| Published | Oct 18, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
strophe / libstrophe
0 ≤ 0.14.0
References
hackmd.io: https://hackmd.io/@haindpwn/libstrophe-scram-salt-stack-overflow github.com: https://github.com/strophe/libstrophe/blob/0.14.0/src/scram.c github.com: https://github.com/strophe/libstrophe/blob/0.14.0/src/sasl.c vulncheck.com: https://www.vulncheck.com/advisories/libstrophe-through-0.14.0-stack-based-buffer-overflow-via-scram-salt-in-scram-hi
Credits
HaiND from the Post and Telecommunication Institute of Technology