Cisco Jabber up to 11.1 ContentProvider display name path traversal

Summaryinfo

A vulnerability classified as problematic has been found in Cisco Jabber. Affected by this vulnerability is an unknown functionality of the component ContentProvider. The manipulation of the argument display name leads to path traversal. This vulnerability is referenced as CVE-2026-101886. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Jabber and classified as problematic. This issue affects some unknown processing of the component ContentProvider. The manipulation of the argument display name with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is integrity. The summary by CVE is:

Cisco Jabber for Android (com.cisco.im) before 15.3.1.311364 contains a path traversal vulnerability that allows a malicious app with no permissions to write attacker-controlled files into Jabber's private data directory by exploiting the exported crosslaunch.share activity and an unsanitized display name from a ContentProvider used in file path construction. Attackers can craft a shared content:// URI with a display name containing '../' sequences to place fully attacker-controlled content within directories such as databases/, shared_prefs/, no_backup/, and files/ without user interaction.

The advisory is shared at bst.cisco.com. The identification of this vulnerability is CVE-2026-101886 since 09/28/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/07/2026). MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 15.3.1.311364 eliminates this vulnerability.

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Productinfo

Vendor

• Cisco

Name

• Jabber

Version

• 1.9.31
• 9.6(0)
• 9.6(1)
• 9.6(2)
• 9.6(3)
• 9.7(0)
• 9.7(1)
• 9.7(2)
• 9.7(3)
• 9.7(4)
• 9.7(5)
• 10.6
• 10.6(8)
• 11.0
• 11.1

License

• commercial

Website

• Vendor: https://www.cisco.com/

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