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TI-2020-16181 Aliases CVE-2020-26547GHSA-rf7j-w28r-v7m8

Monal before 4.9 does not implement proper sender verification on MAM and Message Carbon…

Priority MEDIUM 43CWE-345Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-345.

Summary

Monal before 4.9 does not implement proper sender verification on MAM and Message Carbon (XEP-0280) results. This allows a remote attacker (able to send stanzas to a victim) to inject arbitrary messages into the local history, with full control over the sender and receiver displayed to the victim.

Why it matters now

EPSS 0.00555 46th percentileScored 2026-11-07
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

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:monal:monal:*:*:*:*:*:iphone_os:*:*before 4.9VulnerableMonal
  • cpe:2.3:a:monal:monal:*:*:*:*:*:iphone_os:*:* Versions before 4.9 Vulnerable ·Monal

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-26547
  2. 2026-10-03 Alias added: GHSA-rf7j-w28r-v7m8

References

Advisory 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences