CVE-2026-112063

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.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/strophe/libstrophe/blob/0.14.0/src/sasl.c
https://github.com/strophe/libstrophe/blob/0.14.0/src/scram.c
https://hackmd.io/@haindpwn/libstrophe-scram-salt-stack-overflow
https://www.vulncheck.com/advisories/libstrophe-through-0.14.0-stack-based-buffer-overflow-via-scram-salt-in-scram-hi
https://hackmd.io/@haindpwn/libstrophe-scram-salt-stack-overflow

Configurations

No configuration.

History

19 Oct 2026, 20:17

Type	Values Removed	Values Added
References	~~() https://hackmd.io/@haindpwn/libstrophe-scram-salt-stack-overflow -~~	() https://hackmd.io/@haindpwn/libstrophe-scram-salt-stack-overflow -

18 Oct 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-18 13:16

Updated : 2026-10-19 21:14

NVD link : CVE-2026-112063

Mitre link : CVE-2026-112063

CVE.ORG link : CVE-2026-112063

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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