Bug 2564792 - CVE-2026-57196 asterisk: asterisk: User impersonation via reflected cross-site scripting in phone provisioning error pages [fedora-44]
Summary: CVE-2026-57196 asterisk: asterisk: User impersonation via reflected cross-sit...
Keywords:
Status: ON_QA
Alias: None
Product: Fedora
Classification: Fedora
Component: asterisk
Version: 44
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Peter Lemenkov
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["ef29aebe-41b1-4682-a85f-d...
Depends On:
Blocks: CVE-2026-57196
TreeView+ depends on / blocked
 
Reported: 2026-11-02 09:49 UTC by gkamathe
Modified: 2026-11-03 02:57 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description gkamathe 2026-11-02 09:49:09 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an unauthenticated attacker may use reflected cross-site scripting in `phone provisioning HTTP error pages` to retrieve an authorized user's `AMI session cookie` and impersonate that user when `res_phoneprov` is enabled. The Asterisk HTTP web server, Asterisk Manager Interface (AMI), and AMI access via HTTP must all be enabled; each is disabled by default. The attacker must be able to connect to the HTTP server, which binds only to `127.0.0.1` by default even when enabled, and must convince the authorized user to click a malicious link. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.

Comment 1 Fedora Update System 2026-11-02 14:52:17 UTC
FEDORA-2026-3e65fe0daf (asterisk-18.26.4-2.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3e65fe0daf

Comment 2 Fedora Update System 2026-11-03 02:57:42 UTC
FEDORA-2026-3e65fe0daf has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-3e65fe0daf`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3e65fe0daf

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.


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