UnratedFix available
Fix CVE(s): CVE-2025-69534
Type: advisorySources: OSV
* SECURITY UPDATE: unhandled NotImplementedError denial-of-service in the html.parser module when parsing malformed markup declarations - debian/patches/CVE-2025-69534.patch: narrow the marked-section dispatch in parse_html_declaration() in Lib/html/parser.py so only "
- Products
- idle-python3.5, libpython3.5, libpython3.5-dev, libpython3.5-minimal, libpython3.5-stdlib, libpython3.5-testsuite, python3.5, python3.5-dev, python3.5-doc, python3.5-examples, python3.5-minimal, python3.5-venv
- Affected versions
- Not specified
- Fixed versions
- 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
- CVEs
- CVE-2025-69534
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:39 UTC · Revision 1
Source evidence
* SECURITY UPDATE: unhandled NotImplementedError denial-of-service in the html.parser module when parsing malformed markup declarations - debian/patches/CVE-2025-69534.patch: narrow the marked-section dispatch in parse_html_declaration() in Lib/html/parser.py so only "
osv:CLSA-2026-1785886363
idle-python3.5
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
libpython3.5
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
libpython3.5-dev
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
libpython3.5-minimal
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
libpython3.5-stdlib
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
libpython3.5-testsuite
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
python3.5
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
python3.5-dev
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
python3.5-doc
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
python3.5-examples
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
python3.5-minimal
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
python3.5-venv
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els28
Complete source record
{
"id": "ed21776b8ff17882e1ee6be734c1ed61a1dedc73dc4ac1f5a6ccc896b947f3ac",
"url": "https://osv.dev/vulnerability/CLSA-2026-1785886363",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2025-69534",
"summary": "* SECURITY UPDATE: unhandled NotImplementedError denial-of-service in the html.parser module when parsing malformed markup declarations - debian/patches/CVE-2025-69534.patch: narrow the marked-section dispatch in parse_html_declaration() in Lib/html/parser.py so only \"",
"evidence": "osv:CLSA-2026-1785886363",
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{
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{
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"severity": "unknown",
"structured": {
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"package": {
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"purl": "pkg:deb/tuxcare/libpython3.5-testsuite?distro=ubuntu-16.04",
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"database_specific": {
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],
"modified": "2026-10-26T09:32:01.913128995Z",
"provider": "osv",
"upstream": [
"CVE-2025-69534"
],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1785886363.html",
"https://nvd.nist.gov/vuln/detail/CVE-2025-69534"
]
},
"related_cves": [
{
"value": "CVE-2025-69534",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449410,
"published_at": "2026-08-04T23:32:53+00:00"
}