CVE-2022-42916: Haxx Curl vulnerability
Haxx · Curl
Fixed in 7.86.0 · Affected: Haxx Curl before 7.86.0 · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 85% of scored CVEs
DescriptionCVE.org
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.
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Haxx
- Published
- October 2022
- Bounty reports
- 6 disclosed on HackerOne
Disclosed bug bounty reports about CVE-2022-42916
The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.
- no_proxy IDN mismatch: Unicode hostnames bypass proxy exclusion listcurl · 2026Informative
- curl tool: --hsts is ignored for a schemeless URL starting with a slash under --proto-default httpcurl · 2026 · low severityInformative
- IDN decoding inserts authority delimiters and can redirect proxy CONNECT to a different hostcurl · 2026 · high severityInformative
- CVE-2022-42916: HSTS bypass via IDNInternet Bug Bounty · 2022 · medium severityValid
- CVE-2022-43551: Another HSTS bypass via IDNcurl · 2022 · medium severityValid
- CVE-2022-42916: HSTS bypass via IDNcurl · 2022 · medium severityValid
CoverageNo articles yet
No CyberSIXT article names CVE-2022-42916 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-319cwe.mitre.org
- Vendor advisorylists.fedoraproject.org
- Vendor advisorylists.fedoraproject.org
- Vendor advisorylists.fedoraproject.org
- Vendor advisorysecurity.gentoo.org
- curl.se/docs/CVE-2022-42916.htmlcurl.se
- security.netapp.com/advisory/ntap-20221209-0010security.netapp.com
- support.apple.com/kb/HT213604support.apple.com
- support.apple.com/kb/HT213605support.apple.com
- cert-portal.siemens.com/productcert/html/ssa-892048.htmlcert-portal.siemens.com
- cert-portal.siemens.com/productcert/html/ssa-398330.htmlcert-portal.siemens.com
- Mailing listopenwall.com
- Mailing listseclists.org
1 more reference is in the CVE record.