usn-8470-1
Vulnerability from osv_ubuntu
Published
2026-06-25 07:53
Modified
2026-06-25 07:53
Summary
cpp-httplib vulnerability
Details
It was discovered that cpp-httplib incorrectly percent-decoded HTTP request header values. A remote attacker could use this to inject crafted header content possibly leading to response splitting, log injection or proxy smuggling.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-45372",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libcpp-httplib0",
"binary_version": "0.10.3+ds-1ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "cpp-httplib",
"purl": "pkg:deb/ubuntu/cpp-httplib@0.10.3+ds-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.10.3+ds-1ubuntu0.1~esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.9.9+ds-1",
"0.9.10+ds-1",
"0.10.1+ds-1",
"0.10.2+ds-1",
"0.10.3+ds-1",
"0.10.3+ds-1ubuntu0.1~esm1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-45372",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libcpp-httplib0.14t64",
"binary_version": "0.14.3+ds-1.1ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:24.04:LTS",
"name": "cpp-httplib",
"purl": "pkg:deb/ubuntu/cpp-httplib@0.14.3+ds-1.1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.14.3+ds-1.1ubuntu0.1~esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.13.1+ds-1ubuntu1",
"0.14.3+ds-1",
"0.14.3+ds-1.1",
"0.14.3+ds-1.1build1",
"0.14.3+ds-1.1build2",
"0.14.3+ds-1.1ubuntu0.1~esm1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-45372",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:25.10"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libcpp-httplib0.18",
"binary_version": "0.18.7-1ubuntu0.25.10.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "cpp-httplib",
"purl": "pkg:deb/ubuntu/cpp-httplib@0.18.7-1ubuntu0.25.10.2?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.18.7-1ubuntu0.25.10.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.18.7-1",
"0.18.7-1ubuntu0.25.10.1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-45372",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:26.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libcpp-httplib0.26",
"binary_version": "0.26.0+ds-2ubuntu3+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:26.04:LTS",
"name": "cpp-httplib",
"purl": "pkg:deb/ubuntu/cpp-httplib@0.26.0+ds-2ubuntu3+esm1?arch=source\u0026distro=esm-apps/resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.26.0+ds-2ubuntu3+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.18.7-1",
"0.26.0+ds-2ubuntu2",
"0.26.0+ds-2ubuntu3"
]
}
],
"aliases": [],
"details": "It was discovered that cpp-httplib incorrectly percent-decoded HTTP\nrequest header values. A remote attacker could use this to inject crafted\nheader content possibly leading to response splitting, log injection\nor proxy smuggling.",
"id": "USN-8470-1",
"modified": "2026-06-25T07:53:24Z",
"published": "2026-06-25T07:53:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8470-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-45372"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "cpp-httplib vulnerability",
"upstream": [
"UBUNTU-CVE-2026-45372"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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