asterisk: PJSIP is a free and open source multimedia communication library written in C
CVE-2026-40892 is fixed in asterisk on 1 platform by DEBIAN-CVE-2026-40892 (version 1:22.10.0+dfsg+~cs6.17.60671434-1), released April 21, 2026. It is not reported as exploited. Patch Radar priority: Urgent.
PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a stack buffer overflow exists in pjsip_auth_create_digest2() in PJSIP when using pre-computed digest credentials (PJSIP_CRED_DATA_DIGEST). The function copies credential data using cred_info->data.slen as the length without an upper-bound check, which can overflow the fixed-size ha1 stack buffer (128 bytes) if data.slen exceeds the expected digest string length.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| asterisk · Debian 14 | 1:22.10.0+dfsg+~cs6.17.60671434-1 | DEBIAN-CVE-2026-40892 | Apr 21, 2026 |
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