An incorrect implementation of "XEP-0280: Message Carbons" in multiple XMPP clients…
Priority LOW 30CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-346.
Summary
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 Jitsi 2.5.5061 - 2.9.5544.
Why it matters now
EPSS 0.0155 75th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-5603
- 2026-10-03 Alias added: GHSA-xrvf-qx2p-xmvr
References
More Jitsi vulnerabilities
- TI-2022-21330 OS command injection in https://github.com/jitsi CVSS 3.1CRITICAL 9.8
- TI-2022-16994 Jitsi-2.10.5550 was discovered to contain a vulnerability in its web UI which allows… CVSS 3.1MEDIUM 6.1
Sources
- CVE-2017-5603 · CVE Program
- CVE-2017-5603 · NVD
- FIRST EPSS
- GHSA-xrvf-qx2p-xmvr · GitHub Advisory Database · CC BY 4.0
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