UBUNTU-CVE-2026-87863
- Source
- https://ubuntu.com/security/CVE-2026-87863
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87863.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-87863
- Upstream
- CVE-2026-87863
- Downstream
USN (2)
- Related
- Published
- 2026-10-14T06:00:00Z
- Modified
- 2026-10-17T13:01:14Z
- Severity
-
- Ubuntu - low
- Summary
- [none]
- Details
-
An authenticated HTTPS origin can supply an HSTS
max-agevalue that the parser accepts, but time serialization later fails to process. On 64-bit systems, extreme max-age values compute an absolute expiry within standard time integer limits that exceeds calendar time structure bounds. During cache saves, the original HSTS file is truncated before writing a temporary replacement; when serialization fails, the temporary file is deleted, leaving an empty or partial cache. Because the save error is silently ignored during cleanup, curl exits successfully despite the data loss. - References
Affected packages
Ubuntu:24.04:LTS / curl
Package
- Name
- curl
- Purl
- pkg:deb/ubuntu/curl?arch=source&distro=noble
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
8.*
8.2.1-1ubuntu3
8.2.1-1ubuntu3.1
8.4.0-2ubuntu1
8.5.0-2ubuntu1
8.5.0-2ubuntu2
8.5.0-2ubuntu8
8.5.0-2ubuntu9
8.5.0-2ubuntu10
8.5.0-2ubuntu10.1
8.5.0-2ubuntu10.2
8.5.0-2ubuntu10.3
8.5.0-2ubuntu10.4
8.5.0-2ubuntu10.5
8.5.0-2ubuntu10.6
8.5.0-2ubuntu10.7
8.5.0-2ubuntu10.8
8.5.0-2ubuntu10.9
8.5.0-2ubuntu10.10
8.5.0-2ubuntu10.11
8.5.0-2ubuntu10.12
8.5.0-2ubuntu10.13
8.5.0-2ubuntu10.15
8.5.0-2ubuntu10.16
Ecosystem specific
{
"binaries": [
{
"binary_name": "curl",
"binary_version": "8.5.0-2ubuntu10.16"
},
{
"binary_name": "libcurl3t64-gnutls",
"binary_version": "8.5.0-2ubuntu10.16"
},
{
"binary_name": "libcurl4t64",
"binary_version": "8.5.0-2ubuntu10.16"
}
],
"priority_reason": "Upstream defined this as low severity"
}
Ubuntu:26.10 / curl
Package
- Name
- curl
- Purl
- pkg:deb/ubuntu/curl?arch=source&distro=stonking
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
8.*
8.18.0-1ubuntu2
8.20.0-2ubuntu1
8.20.0-2ubuntu3
8.20.0-2ubuntu10
8.20.0-2ubuntu11
Ecosystem specific
{
"binaries": [
{
"binary_name": "curl",
"binary_version": "8.20.0-2ubuntu11"
},
{
"binary_name": "libcurl3t64-gnutls",
"binary_version": "8.20.0-2ubuntu11"
},
{
"binary_name": "libcurl4t64",
"binary_version": "8.20.0-2ubuntu11"
}
],
"priority_reason": "Upstream defined this as low severity"
}
Ubuntu:26.04:LTS / curl
Package
- Name
- curl
- Purl
- pkg:deb/ubuntu/curl?arch=source&distro=resolute
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed8.18.0-1ubuntu2.8
Affected versions
8.*
8.14.1-2ubuntu1
8.17.0-1ubuntu1
8.18.0-1ubuntu1
8.18.0-1ubuntu2
8.18.0-1ubuntu2.1
8.18.0-1ubuntu2.2
8.18.0-1ubuntu2.3
8.18.0-1ubuntu2.4
8.18.0-1ubuntu2.5
8.18.0-1ubuntu2.7
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "8.18.0-1ubuntu2.8"
},
{
"binary_name": "libcurl3t64-gnutls",
"binary_version": "8.18.0-1ubuntu2.8"
},
{
"binary_name": "libcurl4t64",
"binary_version": "8.18.0-1ubuntu2.8"
}
],
"priority_reason": "Upstream defined this as low severity"
}