Critical
Security advisory
A type confusion vulnerability in the merge_param() function of php_http_params.c in PHP's pecl-http extension 3.1.0beta2 (PHP 7) and earlier as well as 2.6.0beta2 (PHP 5) and earlier allows attackers to crash PHP and possibly execute arbitrary code via crafted HTTP requests.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-7398
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:13 UTC · Revision 1
Source evidence
A type confusion vulnerability in the merge_param() function of php_http_params.c in PHP's pecl-http extension 3.1.0beta2 (PHP 7) and earlier as well as 2.6.0beta2 (PHP 5) and earlier allows attackers to crash PHP and possibly execute arbitrary code via crafted HTTP requests.
osv:CVE-2016-7398
Complete source record
{
"id": "005402866b12e0d27c11fbeddffa09fe17c08e838630d80f393a9dda1a1d084e",
"url": "https://osv.dev/vulnerability/CVE-2016-7398",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-7398",
"summary": "A type confusion vulnerability in the merge_param() function of php_http_params.c in PHP's pecl-http extension 3.1.0beta2 (PHP 7) and earlier as well as 2.6.0beta2 (PHP 5) and earlier allows attackers to crash PHP and possibly execute arbitrary code via crafted HTTP requests.",
"evidence": "osv:CVE-2016-7398",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2016-7398",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
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"repo": "https://github.com/m6w6/ext-http",
"type": "GIT",
"events": [
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"introduced": "0"
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{
"fixed": "17137d4ab1ce81a2cee0fae842340a344ef3da83"
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"database_specific": {
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"range": [
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{
"cpe": "cpe:2.3:a:php:ext-http:2.6.0:-:*:*:*:*:*:*",
"range": [
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{
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{
"cpe": "cpe:2.3:a:php:ext-http:2.6.0:beta1:*:*:*:*:*:*",
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{
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{
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{
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"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:php:ext-http:2.6.0:rc1:*:*:*:*:*:*",
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},
{
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"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:ext-http:3.1.0:*:*:*:*:*:*:*",
"range": [
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"introduced": "3.1.0"
},
{
"last_affected": "3.1.0"
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],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:php:ext-http:3.1.0:beta1:*:*:*:*:*:*",
"range": [
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{
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],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:ext-http:3.1.0:beta2:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.0-beta2"
},
{
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],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:ext-http:3.1.0:rc1:*:*:*:*:*:*",
"range": [
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},
{
"last_affected": "3.1.0-rc1"
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],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "17137d4ab1ce81a2cee0fae842340a344ef3da83"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"2.6.0-NA",
"2.6.0-beta1",
"2.6.0-beta2",
"2.6.0-rc1",
"3.1.0",
"3.1.0-beta1",
"3.1.0-beta2",
"3.1.0-rc1",
"RELEASE_2_5_6",
"RELEASE_2_5_5",
"RELEASE_2_5_3",
"RELEASE_2_5_2",
"RELEASE_2_5_1",
"RELEASE_2_5_0",
"RELEASE_2_5_0_RC1",
"RELEASE_2_0_4",
"RELEASE_2_0_3",
"RELEASE_2_0_2",
"RELEASE_2_0_1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-7398.json",
"vanir_signatures": [
{
"id": "CVE-2016-7398-1d33e960",
"digest": {
"threshold": 0.9,
"line_hashes": [
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},
"source": "https://github.com/m6w6/ext-http/commit/17137d4ab1ce81a2cee0fae842340a344ef3da83",
"target": {
"file": "src/php_http_params.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:23:26Z"
}
}
],
"modified": "2026-10-20T13:23:26.277528538Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2019/09/msg00022.html",
"https://github.com/m6w6/ext-http/commit/17137d4ab1ce81a2cee0fae842340a344ef3da83",
"https://bugs.php.net/bug.php?id=73055",
"https://bugs.php.net/bug.php?id=73055&edit=1"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2016-7398",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 387606,
"published_at": "2019-09-06T19:15:11.387+00:00"
}