CriticalFix available
nginx — security advisory
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_core_module module. When asynchronous file I/O (AIO) is enabled in certain configurations, processing a Server Side Includes (SSI) page containing “include virtual” commands may trigger a Use-After-Free (UAF) in the NGINX worker process. This may cause memory corruption or a worker process crash. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system, corrupt its memory, or possibly trigger code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- Products
- nginx
- Affected versions
- 1.10.0-0ubuntu0.16.04.1, 1.10.0-0ubuntu0.16.04.2, 1.10.0-0ubuntu0.16.04.3, 1.10.0-0ubuntu0.16.04.4, 1.10.3-0ubuntu0.16.04.1, 1.10.3-0ubuntu0.16.04.2, 1.10.3-0ubuntu0.16.04.3, 1.10.3-0ubuntu0.16.04.4, 1.10.3-0ubuntu0.16.04.5, 1.10.3-0ubuntu0.16.04.5+esm1, 1.10.3-0ubuntu0.16.04.5+esm2, 1.10.3-0ubuntu0.16.04.5+esm3, 1.10.3-0ubuntu0.16.04.5+esm4, 1.10.3-0ubuntu0.16.04.5+esm5, 1.10.3-0ubuntu0.16.04.5+esm6, 1.10.3-0ubuntu0.16.04.5+esm7, 1.10.3-0ubuntu0.16.04.5+esm9, 1.12.1-0ubuntu2, 1.13.10-1ubuntu1, 1.13.12-0ubuntu1, 1.13.6-2ubuntu1, 1.13.6-2ubuntu2, 1.14.0-0ubuntu1, 1.14.0-0ubuntu1.1, 1.14.0-0ubuntu1.10, 1.14.0-0ubuntu1.11, 1.14.0-0ubuntu1.11+esm1, 1.14.0-0ubuntu1.11+esm2, 1.14.0-0ubuntu1.11+esm4, 1.14.0-0ubuntu1.2, 1.14.0-0ubuntu1.3, 1.14.0-0ubuntu1.4, 1.14.0-0ubuntu1.5, 1.14.0-0ubuntu1.6, 1.14.0-0ubuntu1.7, 1.14.0-0ubuntu1.9, 1.16.1-0ubuntu2, 1.16.1-0ubuntu3, 1.17.10-0ubuntu1, 1.17.5-0ubuntu1, 1.17.6-0ubuntu1, 1.17.7-0ubuntu1, 1.17.8-0ubuntu1, 1.17.8-0ubuntu2, 1.17.8-0ubuntu3, 1.17.9-0ubuntu1, 1.17.9-0ubuntu2, 1.17.9-0ubuntu3, 1.18.0-0ubuntu1, 1.18.0-0ubuntu1.2, 1.18.0-0ubuntu1.3, 1.18.0-0ubuntu1.4, 1.18.0-0ubuntu1.5, 1.18.0-0ubuntu1.6, 1.18.0-0ubuntu1.7, 1.18.0-0ubuntu1.7+esm1, 1.18.0-0ubuntu1.7+esm3, 1.18.0-6ubuntu11, 1.18.0-6ubuntu12, 1.18.0-6ubuntu14, 1.18.0-6ubuntu14.1, 1.18.0-6ubuntu14.10, 1.18.0-6ubuntu14.11, 1.18.0-6ubuntu14.12, 1.18.0-6ubuntu14.13, 1.18.0-6ubuntu14.14, 1.18.0-6ubuntu14.15, 1.18.0-6ubuntu14.16, 1.18.0-6ubuntu14.17, 1.18.0-6ubuntu14.18, 1.18.0-6ubuntu14.19, 1.18.0-6ubuntu14.2, 1.18.0-6ubuntu14.20, 1.18.0-6ubuntu14.21, 1.18.0-6ubuntu14.3, 1.18.0-6ubuntu14.4, 1.18.0-6ubuntu14.5, 1.18.0-6ubuntu14.6, 1.18.0-6ubuntu14.7, 1.18.0-6ubuntu14.8, 1.24.0-1ubuntu1, 1.24.0-2ubuntu1, 1.24.0-2ubuntu2, 1.24.0-2ubuntu3, 1.24.0-2ubuntu4, 1.24.0-2ubuntu6, 1.24.0-2ubuntu7, 1.24.0-2ubuntu7.1, 1.24.0-2ubuntu7.10, 1.24.0-2ubuntu7.11, 1.24.0-2ubuntu7.12, 1.24.0-2ubuntu7.13, 1.24.0-2ubuntu7.14, 1.24.0-2ubuntu7.15, 1.24.0-2ubuntu7.16, 1.24.0-2ubuntu7.17, 1.24.0-2ubuntu7.18, 1.24.0-2ubuntu7.3, 1.24.0-2ubuntu7.4, 1.24.0-2ubuntu7.5, 1.24.0-2ubuntu7.6, 1.24.0-2ubuntu7.7, 1.24.0-2ubuntu7.8, 1.24.0-2ubuntu7.9, 1.28.0-6ubuntu1, 1.28.1-2ubuntu1, 1.28.1-3ubuntu1, 1.28.2-2ubuntu1, 1.28.3-2ubuntu1, 1.28.3-2ubuntu1.1, 1.28.3-2ubuntu1.10, 1.28.3-2ubuntu1.11, 1.28.3-2ubuntu1.2, 1.28.3-2ubuntu1.3, 1.28.3-2ubuntu1.4, 1.28.3-2ubuntu1.5, 1.28.3-2ubuntu1.6, 1.28.3-2ubuntu1.7, 1.28.3-2ubuntu1.8, 1.28.3-2ubuntu1.9, 1.30.1-4ubuntu1, 1.30.1-6ubuntu1, 1.30.4-5ubuntu1, 1.30.4-7ubuntu1, 1.4.1-3ubuntu1, 1.4.3-2ubuntu1, 1.4.4-1ubuntu1, 1.4.4-2ubuntu1, 1.4.4-4ubuntu1, 1.4.5-1ubuntu1, 1.4.6-1ubuntu2, 1.4.6-1ubuntu3, 1.4.6-1ubuntu3.1, 1.4.6-1ubuntu3.2, 1.4.6-1ubuntu3.3, 1.4.6-1ubuntu3.4, 1.4.6-1ubuntu3.5, 1.4.6-1ubuntu3.6, 1.4.6-1ubuntu3.7, 1.4.6-1ubuntu3.8, 1.4.6-1ubuntu3.9, 1.4.6-1ubuntu3.9+esm1, 1.4.6-1ubuntu3.9+esm2, 1.4.6-1ubuntu3.9+esm3, 1.4.6-1ubuntu3.9+esm4, 1.4.6-1ubuntu3.9+esm5, 1.4.6-1ubuntu3.9+esm6, 1.4.6-1ubuntu3.9+esm8, 1.9.10-0ubuntu1, 1.9.10-1ubuntu1, 1.9.11-0ubuntu1, 1.9.11-0ubuntu2, 1.9.12-0ubuntu1, 1.9.13-0ubuntu1, 1.9.14-0ubuntu1, 1.9.15-0ubuntu1, 1.9.3-1ubuntu1, 1.9.6-2ubuntu1, 1.9.6-2ubuntu2, 1.9.9-0ubuntu1, 1.9.9-1ubuntu1
- Fixed versions
- 1.18.0-6ubuntu14.22, 1.24.0-2ubuntu7.19, 1.28.3-2ubuntu1.12, 1.30.4-7ubuntu1.1
- CVEs
- CVE-2026-97205
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 16:51 UTC · Revision 1
Source evidence
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_core_module module. When asynchronous file I/O (AIO) is enabled in certain configurations, processing a Server Side Includes (SSI) page containing “include virtual” commands may trigger a Use-After-Free (UAF) in the NGINX worker process. This may cause memory corruption or a worker process crash. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system, corrupt its memory, or possibly trigger code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
osv:UBUNTU-CVE-2026-97205
nginx
Fixed versions: Not specified
nginx
Fixed versions: Not specified
nginx
Fixed versions: Not specified
nginx
Fixed versions: Not specified
nginx
Fixed versions: 1.18.0-6ubuntu14.22
nginx
Fixed versions: 1.24.0-2ubuntu7.19
nginx
Fixed versions: 1.30.4-7ubuntu1.1
nginx
Fixed versions: 1.28.3-2ubuntu1.12
Complete source record
{
"id": "e587964dce0274353563794cbdf6bbaf02ef8ac9e700150376b4cb561bad0739",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-97205",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-97205",
"summary": "NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_core_module module. When asynchronous file I/O (AIO) is enabled in certain configurations, processing a Server Side Includes (SSI) page containing “include virtual” commands may trigger a Use-After-Free (UAF) in the NGINX worker process. This may cause memory corruption or a worker process crash. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system, corrupt its memory, or possibly trigger code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.",
"evidence": "osv:UBUNTU-CVE-2026-97205",
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{
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{
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{
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"evidence": "/affected/4/versions"
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{
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"evidence": "/affected/4/versions"
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{
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"evidence": "/affected/4/versions"
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{
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},
{
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{
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],
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{
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"evidence": "/affected/5/versions"
},
{
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"evidence": "/affected/5/versions"
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{
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"evidence": "/affected/5/versions"
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{
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"evidence": "/affected/5/versions"
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{
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"evidence": "/affected/5/versions"
},
{
"value": "1.24.0-2ubuntu6",
"evidence": "/affected/5/versions"
},
{
"value": "1.24.0-2ubuntu7",
"evidence": "/affected/5/versions"
},
{
"value": "1.24.0-2ubuntu7.1",
"evidence": "/affected/5/versions"
},
{
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"evidence": "/affected/5/versions"
},
{
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"evidence": "/affected/5/versions"
},
{
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"evidence": "/affected/5/versions"
},
{
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"evidence": "/affected/5/versions"
},
{
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},
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"modified": "2026-10-26T22:34:45.671683622Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-97205",
"https://www.cve.org/CVERecord?id=CVE-2026-97205",
"https://my.f5.com/manage/s/article/K000162608",
"https://ubuntu.com/security/notices/USN-8955-1"
]
},
"related_cves": [
{
"value": "CVE-2026-97205",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 458992,
"published_at": "2026-10-15T00:00:00+00:00"
}