UnratedFix available
Fix CVE(s): CVE-2026-0864
Type: advisorySources: OSV
* SECURITY UPDATE: configuration-file injection in the configparser module when writing multi-line values containing carriage returns - debian/patches/CVE-2026-0864.patch: normalize CRLF and bare CR to LF before applying the '\n' -> '\n\t' continuation escape in _write_section() in Lib/configparser.py, so an attacker-controlled value can no longer inject additional keys and values into the written file; adds the upstream regression test test_crlf_normalization to Lib/test/test_configparser.py. - CVE-2026-0864
- 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.els29
- CVEs
- CVE-2026-0864
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:39 UTC · Revision 1
Source evidence
* SECURITY UPDATE: configuration-file injection in the configparser module when writing multi-line values containing carriage returns - debian/patches/CVE-2026-0864.patch: normalize CRLF and bare CR to LF before applying the '\n' -> '\n\t' continuation escape in _write_section() in Lib/configparser.py, so an attacker-controlled value can no longer inject additional keys and values into the written file; adds the upstream regression test test_crlf_normalization to Lib/test/test_configparser.py. - CVE-2026-0864
osv:CLSA-2026-1787648497
idle-python3.5
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
libpython3.5
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
libpython3.5-dev
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
libpython3.5-minimal
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
libpython3.5-stdlib
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
libpython3.5-testsuite
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
python3.5
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
python3.5-dev
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
python3.5-doc
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
python3.5-examples
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
python3.5-minimal
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
python3.5-venv
Fixed versions: 1:3.5.2-2ubuntu0~16.04.13+tuxcare.els29
Complete source record
{
"id": "99692a583eb095cd74a4d5f0e963300e84a7ed8ae785aac3e5d2310067857a21",
"url": "https://osv.dev/vulnerability/CLSA-2026-1787648497",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2026-0864",
"summary": "* SECURITY UPDATE: configuration-file injection in the configparser module when writing multi-line values containing carriage returns - debian/patches/CVE-2026-0864.patch: normalize CRLF and bare CR to LF before applying the '\\n' -> '\\n\\t' continuation escape in _write_section() in Lib/configparser.py, so an attacker-controlled value can no longer inject additional keys and values into the written file; adds the upstream regression test test_crlf_normalization to Lib/test/test_configparser.py. - CVE-2026-0864",
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{
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"evidence": "/affected/10/package/name"
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"database_specific": {
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"package": {
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"database_specific": {
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],
"modified": "2026-10-26T09:32:02.111574453Z",
"provider": "osv",
"upstream": [
"CVE-2026-0864"
],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1787648497.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-0864"
]
},
"related_cves": [
{
"value": "CVE-2026-0864",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449416,
"published_at": "2026-08-25T15:24:49+00:00"
}