CVE-2022-42916
In curl before 7.86.0, the HSTS check could be bypassed to trick it into staying with HTTP. Using its HSTS support, curl can be instructed to use HTTPS directly (instead of using an insecure cleartext HTTP step) even when HTTP is provided in the URL. This mechanism could be bypassed if the host name in the given URL uses IDN characters that get replaced with ASCII counterparts as part of the IDN conversion, e.g., using the character UTF-8 U+3002 (IDEOGRAPHIC FULL STOP) instead of the common ASCII full stop of U+002E (.). The earliest affected version is 7.77.0 2021-05-26.
- Affected products
- Alt Linux, Debian, Linuxmint, Apple Macos, Red Os, Suse, Ubuntu, Virtualbox
- Haxx Curl
- < 7.86.0
- Fix
- Available
- CVSS 3.1
- 7.5 HIGH
- EPSS
- 1.6% (74th percentile)
- Weakness
- CWE-319
- NVD status
- Modified
- Published
- 2022-10-29
No indexed exploits for CVE-2022-42916 yet
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No exploit for CVE-2022-42916 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.