Description
A flaw was found in curl. When importing HTTP Strict Transport Security (HSTS) cache records, loading a parent domain entry configured to include subdomains before a longer-lived subdomain entry silently drops the subdomain policy. Consequently, once the parent policy expires, curl fails to upgrade subsequent connections for the subdomain to HTTPS and transmits unencrypted requests, allowing a network attacker to intercept sensitive data.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No solution or workaround provided in the CVE record.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Ubuntu USN |
USN-8927-1 | curl vulnerabilities |
Ubuntu USN |
USN-8932-1 | curl vulnerabilities |
References
History
Sun, 18 Oct 2026 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Curl
Curl curl |
|
| Vendors & Products |
Curl
Curl curl |
Sat, 17 Oct 2026 00:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in curl. When importing HTTP Strict Transport Security (HSTS) cache records, loading a parent domain entry configured to include subdomains before a longer-lived subdomain entry silently drops the subdomain policy. Consequently, once the parent policy expires, curl fails to upgrade subsequent connections for the subdomain to HTTPS and transmits unencrypted requests, allowing a network attacker to intercept sensitive data. | |
| Title | curl: curl: HSTS cache import drops longer-lived child | |
| Weaknesses | CWE-201 | |
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
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OpenCVE Enrichment
Updated: 2026-10-18T17:00:08Z
Weaknesses
Ubuntu USN