🛡️ CVE-2016-10027 — smack-core

⚪ Unknown ✅ No Known Exploit CWE-362 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Smack allows the bypass of TLS protections

Race condition in the XMPP library in Smack before 4.1.9, when the SecurityMode.required TLS setting has been set, allows man-in-the-middle attackers to bypass TLS protections and trigger use of cleartext for client authentication by stripping the "starttls" feature from a server response.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2016-10027 is classified as CWE-362: Race Condition. Concurrent operations share state without proper synchronisation, so timing decides whether the result is correct.

Affected software

CVE-2016-10027 is recorded against 1 package.

  • org.igniterealtime.smack:smack-core (fixed in 4.1.9)

Timeline and source

Published on 13 May 2022 and last revised on 21 April 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
community.igniterealtime.org (Web)
github.com (Package)
issues.igniterealtime.org (Web)
lists.fedoraproject.org (Web)
lists.fedoraproject.org (Web)
www.openwall.com (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE CWE-362
Public Exploit ✅ No
Source OSV
Published 2022-05-13
Updated 2026-08-12
Modified 2025-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
org.igniterealtime.smack:smack-core — 4.1.9

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