CVE-2026-112063

Medium

Description

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.

SeverityMedium
CVSS5.9
Exploit probability—
ProductLibstrophe
PublishedOct 18, 2026
First seenOct 18, 2026
Weakness typeCWE-121CWE-121

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
strophe libstrophev ≤ 0.14.0—

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