Vulnerability in Asterisk
CVE-2026-57203
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, `ast_loggrabber` executes a `Python script` from the world-writable `/tmp` directory. An attacker already authorized to open a shell session on the Asterisk server may place a malicious script there and gain elevated privileges or execute code when an administrator runs `ast_loggrabber` as a user with elevated privileges. 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.
Published .
EPSS exploit prediction
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Affected products
- Asterisk — versions < 20.20.1, >= 21.0.0-pre1, < 21.12.3, >= 22.0.0-pre1, < 22.10.1
- Asterisk Certified-Asterisk — versions < 20.7-cert11, >= 22.8-cert1-pre1, < 22.8-cert3
Weakness classification (CWE)
References
- github.com/asterisk/asterisk/security/advisories/GHSA-xgj6-2gc5-5x9c
- github.com/asterisk/asterisk/commit/022407ec47adebe27b7ec8bcf5626e5a02fe1551
- github.com/asterisk/asterisk/commit/a51c4e3d6bccce4bc4226c43e78952573a62f165
- github.com/asterisk/asterisk/commit/ba8e5bdecd5280fc0ab230df59e41ea21b3a052f
- github.com/asterisk/asterisk/commit/bd63fe121d0e86867863bd98b5771e592273b035
- github.com/asterisk/asterisk/commit/c0fc2ae54cb6289a48a80333432f5fdf5a40c7de
- github.com/asterisk/asterisk/commit/f18ac4c964781f671e400342790bf40679698067
- github.com/asterisk/asterisk/releases/tag/20.20.1
- github.com/asterisk/asterisk/releases/tag/21.12.3
- github.com/asterisk/asterisk/releases/tag/22.10.1