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CVE-2026-57187 Details

Description

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 authenticated attacker may cause a heap-use-after-free in `PJSIP TCP/SDP` handling by sending a `SIP INVITE` over a connection-oriented transport and disconnecting before Asterisk responds with the `200 OK`. So far, the crash has only been reproduced when Asterisk is built with `Address Sanitizer`, which detects the issue. `Address Sanitizer` is a development tool with significant performance overhead and, according to the maintainer, is not used in production systems. 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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/asterisk/asterisk/commit/0f076168e0be31ebee37762192d0ee049e9c0d42	[email protected]
https://github.com/asterisk/asterisk/commit/27b9544b32f059a4f614169243eaa7559f622aa0	[email protected]
https://github.com/asterisk/asterisk/commit/6e1f4df744369d66ea6f412e355d819b2a7bf26c	[email protected]
https://github.com/asterisk/asterisk/commit/9e0386c6d259f0c7499d52499d9891bee8a494fa	[email protected]
https://github.com/asterisk/asterisk/commit/b7ba85458796ef54b471017287c7806095dbda76	[email protected]
https://github.com/asterisk/asterisk/commit/d4e30005940f86942745bcc64f34748d69870247	[email protected]
https://github.com/asterisk/asterisk/commit/f1e47621472bb3d8ad71f32823f5ca986e008437	[email protected]
https://github.com/asterisk/asterisk/releases/tag/20.20.1	[email protected]
https://github.com/asterisk/asterisk/releases/tag/21.12.3	[email protected]
https://github.com/asterisk/asterisk/releases/tag/22.10.1	[email protected]
https://github.com/asterisk/asterisk/releases/tag/23.4.1	[email protected]
https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11	[email protected]
https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3	[email protected]
https://github.com/asterisk/asterisk/security/advisories/GHSA-g8q2-p36q-94f6	[email protected]
https://github.com/asterisk/asterisk/tree/24.0.0-pre1	[email protected]

see all 15 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	[email protected]
CWE-664	Improper Control of a Resource Through its Lifetime	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 2, 2026	CVE Modified	CISA-ADP
Oct 26, 2026	New CVE Received	[email protected]