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CVE PROGRAM SOURCE RECORD8.1 High

CVE-2026-87862

HSTS cache import drops longer-lived child

Description

Importing a `includeSubDomains` parent HSTS entry before a longer-lived child entry, silently drops the child. Consequently, when the parent expires, the child's valid HSTS policy is lost, causing curl to issue unencrypted HTTP requests rather than upgrading to HTTPS.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

curl curl

Default version status: unaffected

  • 8.22.0 to ≤ 8.22.0affected
  • 8.21.0 to ≤ 8.21.0affected
  • 8.20.0 to ≤ 8.20.0affected
  • 8.19.0 to ≤ 8.19.0affected
  • 8.18.0 to ≤ 8.18.0affected
  • 8.17.0 to ≤ 8.17.0affected
  • 8.16.0 to ≤ 8.16.0affected
  • 8.15.0 to ≤ 8.15.0affected
  • 8.14.1 to ≤ 8.14.1affected
  • 8.14.0 to ≤ 8.14.0affected
  • 8.13.0 to ≤ 8.13.0affected
  • 8.12.1 to ≤ 8.12.1affected
  • 8.12.0 to ≤ 8.12.0affected
  • 8.11.1 to ≤ 8.11.1affected
  • 8.11.0 to ≤ 8.11.0affected

References