An incorrect implementation of "XEP-0280: Message Carbons" in multiple XMPP clients allows a remote attacker to impersonate any user, inclu…

published 2017-02-09 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-14690

cvss: 5.9; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits: 0; none known

An incorrect implementation of "XEP-0280: Message Carbons" in multiple XMPP clients allows a remote attacker to impersonate any user, including contacts, in the vulnerable application's display. This allows for various kinds of social engineering attacks. This CVE is for yaxim and Bruno (0.8.6 - 0.8.8; Android).

Patch / fix

distros 1 links 1

python-slixmpp openSUSE Tumbleweed 1.16.0-2.1
mcabber openSUSE Tumbleweed 1.1.2-1.1
python-slixmpp openSUSE Tumbleweed 1.8.5-1.2

opensuse advisories openSUSE-SU-2026:11272-1 openSUSE-SU-2025:15016-1 openSUSE-SU-2024:14165-1

github.com/ge0rg/yaxim@65a38dc commit

Exploit prediction

0.97% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

openwall.com http://openwall.com/lists/oss-security/2017/02/09/29 referenced PoC, tagged "exploit" by a source, unverified
rt-solutions.de https://rt-solutions.de/en/2017/02/CVE-2017-5589_xmpp_carbons/ referenced PoC, tagged "exploit" by a source, unverified
rt-solutions.de https://rt-solutions.de/wp-content/uploads/2017/02/CVE-2017-5589_xmpp_carbons.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	5.9	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

CWE-20 Improper Input Validation
CWE-346 Origin Validation Error

References

github.com /ge0rg/yaxim/commit/65a38dc77545d9568732189e86089390f0ceaf9f
patch
openwall.com /lists/oss-security/2017/02/09/29
exploit, mailing-list, third-party-advisory
rt-solutions.de /en/2017/02/CVE-2017-5589_xmpp_carbons/
exploit, technical-description, third-party-advisory
rt-solutions.de /wp-content/uploads/2017/02/CVE-2017-5589_xmpp_carbons.pdf
exploit, technical-description, third-party-advisory
securityfocus.com /bid/96170
vdb-entry

Sources

CVE List CVE-2017-5589
NVD CVE-2017-5589

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary