UnratedFix available
Fix CVE(s): CVE-2026-15308
Type: advisorySources: OSV
* SECURITY UPDATE: CPU denial-of-service in html.parser.HTMLParser via repeated unterminated markup declarations in incremental parsing - debian/patches/CVE-2026-15308.patch: accumulate incrementally fed data in a list and only join and parse it once enough has piled up, avoiding the quadratic rescanning and concatenation of an unterminated construct across feed() calls in Lib/HTMLParser.py - CVE-2026-15308
- Products
- idle-python2.7, libpython2.7, libpython2.7-dev, libpython2.7-minimal, libpython2.7-stdlib, libpython2.7-testsuite, python2.7, python2.7-dev, python2.7-doc, python2.7-examples, python2.7-minimal
- Affected versions
- Not specified
- Fixed versions
- 2.7.16-2+deb10u4+tuxcare.els3
- CVEs
- CVE-2026-15308
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:21 UTC · Revision 1
Source evidence
* SECURITY UPDATE: CPU denial-of-service in html.parser.HTMLParser via repeated unterminated markup declarations in incremental parsing - debian/patches/CVE-2026-15308.patch: accumulate incrementally fed data in a list and only join and parse it once enough has piled up, avoiding the quadratic rescanning and concatenation of an unterminated construct across feed() calls in Lib/HTMLParser.py - CVE-2026-15308
osv:CLSA-2026-1784126834
idle-python2.7
Fixed versions: 2.7.16-2+deb10u4+tuxcare.els3
libpython2.7
Fixed versions: 2.7.16-2+deb10u4+tuxcare.els3
libpython2.7-dev
Fixed versions: 2.7.16-2+deb10u4+tuxcare.els3
libpython2.7-minimal
Fixed versions: 2.7.16-2+deb10u4+tuxcare.els3
libpython2.7-stdlib
Fixed versions: 2.7.16-2+deb10u4+tuxcare.els3
libpython2.7-testsuite
Fixed versions: 2.7.16-2+deb10u4+tuxcare.els3
python2.7
Fixed versions: 2.7.16-2+deb10u4+tuxcare.els3
python2.7-dev
Fixed versions: 2.7.16-2+deb10u4+tuxcare.els3
python2.7-doc
Fixed versions: 2.7.16-2+deb10u4+tuxcare.els3
python2.7-examples
Fixed versions: 2.7.16-2+deb10u4+tuxcare.els3
python2.7-minimal
Fixed versions: 2.7.16-2+deb10u4+tuxcare.els3
Complete source record
{
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"url": "https://osv.dev/vulnerability/CLSA-2026-1784126834",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2026-15308",
"summary": "* SECURITY UPDATE: CPU denial-of-service in html.parser.HTMLParser via repeated unterminated markup declarations in incremental parsing - debian/patches/CVE-2026-15308.patch: accumulate incrementally fed data in a list and only join and parse it once enough has piled up, avoiding the quadratic rescanning and concatenation of an unterminated construct across feed() calls in Lib/HTMLParser.py - CVE-2026-15308",
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"severity": "unknown",
"structured": {
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],
"modified": "2026-10-26T09:31:52.517853393Z",
"provider": "osv",
"upstream": [
"CVE-2026-15308"
],
"references": [
"https://errata.tuxcare.com/els_os/debian10els/CLSA-2026-1784126834.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-15308"
]
},
"related_cves": [
{
"value": "CVE-2026-15308",
"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 448787,
"published_at": "2026-07-15T14:47:28+00:00"
}