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CVE-2026-15308

🗓️ 09 Jul 2026 17:16:58Reported by [email protected]Type 
nvd
 nvd🔗 web.nvd.nist.gov👁 24 Views

CVE-2026-15308: Denial of service via repeated unterminated markup in the incremental parser.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise Certified Container UBI updates
18 Aug 202615:24
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities in IBM Operator for PostgreSQL
24 Jul 202622:23
–ibm
attackerkb
ATTACKERKB		CVE-2026-15308
9 Jul 202617:10
–attackerkb
nessus
Tenable Nessus		Amazon Linux 2023 : python3, python3-devel, python3-idle (ALAS2023-2026-1995)
4 Aug 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2023 : python3.12, python3.12-devel, python3.12-idle (ALAS2023-2026-1996)
4 Aug 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2023 : python3.13, python3.13-devel, python3.13-freethreading (ALAS2023-2026-1997)
4 Aug 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2023 : python3.11, python3.11-devel, python3.11-idle (ALAS2023-2026-1998)
4 Aug 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2023 : python3.14, python3.14-devel, python3.14-freethreading (ALAS2023-2026-1999)
4 Aug 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2 : python, --advisory ALAS2-2026-3845 (ALAS-2026-3845)
4 Aug 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2 : python3, --advisory ALAS2-2026-3852 (ALAS-2026-3852)
4 Aug 202600:00
–nessus
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NVD
Node
OR
pythonpythonRange<3.10.21
pythonpythonRange3.11.0–3.11.16
pythonpythonRange3.12.0–3.12.14
pythonpythonRange3.13.0–3.13.15
pythonpythonRange3.14.0–3.14.7
pythonpythonMatch3.15.0alpha1
pythonpythonMatch3.15.0alpha2
pythonpythonMatch3.15.0alpha3
pythonpythonMatch3.15.0alpha4
pythonpythonMatch3.15.0alpha5
pythonpythonMatch3.15.0alpha6
pythonpythonMatch3.15.0alpha7
pythonpythonMatch3.15.0alpha8
pythonpythonMatch3.15.0beta1
pythonpythonMatch3.15.0beta2
pythonpythonMatch3.15.0beta3
SourceLink
githubwww.github.com/python/cpython/commit/c2390b9376e35a701ed3acc597b8fc87546c9b00
githubwww.github.com/python/cpython/commit/785df8f743800661961528970f8598edcd291c14
githubwww.github.com/python/cpython/commit/e9f92ac0b298292e7ff998e52cb8ccacfb27a0bd
githubwww.github.com/python/cpython/commit/bcf98ddbc40ec9b3ee87da0124a5660b19b7e606
githubwww.github.com/python/cpython/commit/1e7956f1a722df9aabc509c30f8fbdc3a2b4fdc7
openwallwww.openwall.com/lists/oss-security/2026/07/09/4
githubwww.github.com/python/cpython/commit/07efb08123ba9367a7107325adb9d5626dca1ca9
mailwww.mail.python.org/archives/list/[email protected]/thread/F6453LWKSHKCTWFLCOURWPLETNUIW2Z5/
githubwww.github.com/python/cpython/commit/7933f4bf7131aa4140750f9404f5de0aa2969ced
githubwww.github.com/python/cpython/pull/153031
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20 Aug 2026 17:02Current
CVSS 3.17.5
CVSS 48.7
EPSS0.00637
CWE-400
incremental parserdenial of serviceunterminated markupuntrusted data
24